{"id":33790,"date":"2022-01-13T10:40:23","date_gmt":"2022-01-13T09:40:23","guid":{"rendered":"https:\/\/itemm.fr\/itemm\/?p=33790"},"modified":"2022-03-21T10:37:01","modified_gmt":"2022-03-21T09:37:01","slug":"campagne-experimentale-pour-letude-du-geste-de-laccordeur-de-piano","status":"publish","type":"post","link":"https:\/\/itemm.fr\/itemm\/campagne-experimentale-pour-letude-du-geste-de-laccordeur-de-piano\/","title":{"rendered":"Campagne exp\u00e9rimentale pour l\u2019\u00e9tude du geste de l\u2019accordeur de piano"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"33790\" class=\"elementor elementor-33790\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-272f5da1 elementor-section-height-min-height elementor-section-boxed elementor-section-height-default elementor-section-items-middle\" data-id=\"272f5da1\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;,&quot;shape_divider_bottom&quot;:&quot;waves&quot;,&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<div class=\"elementor-shape elementor-shape-bottom\" aria-hidden=\"true\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1000 100\" preserveAspectRatio=\"none\">\n\t<path class=\"elementor-shape-fill\" d=\"M421.9,6.5c22.6-2.5,51.5,0.4,75.5,5.3c23.6,4.9,70.9,23.5,100.5,35.7c75.8,32.2,133.7,44.5,192.6,49.7\n\tc23.6,2.1,48.7,3.5,103.4-2.5c54.7-6,106.2-25.6,106.2-25.6V0H0v30.3c0,0,72,32.6,158.4,30.5c39.2-0.7,92.8-6.7,134-22.4\n\tc21.2-8.1,52.2-18.2,79.7-24.2C399.3,7.9,411.6,7.5,421.9,6.5z\"\/>\n<\/svg>\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d190a7c\" data-id=\"d190a7c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-63d59274 elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"63d59274\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Campagne exp\u00e9rimentale pour l\u2019\u00e9tude du geste de l\u2019accordeur de piano<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b1e678f elementor-align-center elementor-widget elementor-widget-post-info\" data-id=\"7b1e678f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"post-info.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-ef11192 elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t<a href=\"https:\/\/itemm.fr\/itemm\/2022\/01\/13\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>13\/01\/2022<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-e52f4f7 elementor-inline-item\" itemprop=\"about\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-tags\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-terms\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-post-info__terms-list\">\n\t\t\t\t<a href=\"https:\/\/itemm.fr\/itemm\/category\/innovation\/\" class=\"elementor-post-info__terms-list-item\">innovation<\/a>, <a href=\"https:\/\/itemm.fr\/itemm\/category\/innovation\/recherche-appliquee-organologie\/\" class=\"elementor-post-info__terms-list-item\">Recherche appliqu\u00e9e organologie<\/a>\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3d52bba1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3d52bba1\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6d7e3b7c\" data-id=\"6d7e3b7c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6daabc13 elementor-widget elementor-widget-theme-post-featured-image elementor-widget-image\" data-id=\"6daabc13\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"theme-post-featured-image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"569\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-1024x569.png\" class=\"attachment-large size-large wp-image-33794\" alt=\"\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-1024x569.png 1024w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-600x333.png 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-300x167.png 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-768x427.png 768w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-1536x853.png 1536w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-2048x1137.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fd5a9ff elementor-widget elementor-widget-spacer\" data-id=\"5fd5a9ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7dd0ea18 elementor-widget elementor-widget-spacer\" data-id=\"7dd0ea18\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4320a54 elementor-widget elementor-widget-text-editor\" data-id=\"4320a54\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: justify;\"><b>Contexte :<\/b><span style=\"font-weight: 400;\"> Le projet TEACH (Towards E-learning Academy for Cultural Heritage) s\u2019int\u00e9resse \u00e0 la num\u00e9risation du contenu de l\u2019apprentissage des techniciens piano de l\u2019ITEMM. Le but est de cr\u00e9er une plateforme mutualis\u00e9e de connaissances et de ressources digitalis\u00e9es utilisable par les formateurs piano et leurs apprenants, \u00e0 distance. Les diff\u00e9rents contenus porteront sur le r\u00e9glage de la m\u00e9canique, l\u2019acoustique et l\u2019accord du piano, et sa fabrication.\u00a0<\/span><\/p><p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">L\u2019ITEMM forme chaque ann\u00e9e de nombreux techniciens \u00e0 l\u2019accord de pianos. Le geste d\u2019accord \u00e9tant complexe, la formation compl\u00e8te d\u2019un accordeur piano s\u2019\u00e9tale sur 4 ans : 2 ans pour l\u2019accord des pianos droits (niveau CAP), puis 2 ans pour l\u2019accord des pianos \u00e0 queue (niveau BMA).<\/span><\/p><p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">D\u2019apr\u00e8s les enseignants et les professionnels, il existe diff\u00e9rents profils d\u2019accordeurs qui pr\u00e9sentent des gestes variables. Nous allons donc quantifier ce geste avec des mesures de vitesse de rotation de la cl\u00e9, et de dur\u00e9e d&#8217;accord, en proposant une m\u00e9thode simple et accessible en atelier.<\/span><\/p><p style=\"text-align: justify;\"><b>Probl\u00e9matique :<\/b><span style=\"font-weight: 400;\"> L\u2019enjeu principal de cette campagne exp\u00e9rimentale est de comprendre et d\u2019analyser le geste du technicien lorsqu\u2019il accorde son piano. Gr\u00e2ce aux mesures r\u00e9alis\u00e9es aupr\u00e8s des niveaux disponibles \u00e0 l\u2019ITEMM (CAP, BMA), nous pouvons \u00e9galement suivre l\u2019\u00e9volution de ce geste tout au long de la formation des techniciens.<\/span><\/p><div><p><img decoding=\"async\" class=\"wp-image-33793 size-medium aligncenter\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-1-300x262.png\" alt=\"\" width=\"300\" height=\"262\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-1-300x262.png 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-1-600x525.png 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-1-1024x895.png 1024w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-1-768x672.png 768w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-1-1536x1343.png 1536w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-1.png 1863w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p><div style=\"text-align: center;\">Figure 1 : geste d\u2019accord du technicien sur piano droit Kawai.<\/div><\/div><div>\u00a0<\/div><p style=\"text-align: justify;\"><b>M\u00e9thode :<\/b><span style=\"font-weight: 400;\"> Pour capter le geste, nous avons choisi de mesurer la vitesse angulaire (angle \u00e9quivalent parcouru par unit\u00e9 de temps) de la cl\u00e9 d\u2019accord utilis\u00e9e par le technicien, tel que repr\u00e9sent\u00e9 sur la Figure 1.<\/span><\/p><p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Pour la mesure, nous utilisons les gyroscopes pr\u00e9sents dans tous les smartphones. Cette mesure est enregistr\u00e9e dans l\u2019application Phyphox, disponible gratuitement : <\/span><a href=\"https:\/\/phyphox.org\/\"><span style=\"font-weight: 400;\">https:\/\/phyphox.org\/<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p><p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Le smartphone est fix\u00e9 sur une cl\u00e9 d\u2019accord avec un dispositif de fixation pour t\u00e9l\u00e9phones (figure 2). Les r\u00e9sultats sont donn\u00e9s suivant trois axes, repr\u00e9sent\u00e9s sur la figure 3.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-a463ee3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a463ee3\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-0ebc5cd\" data-id=\"0ebc5cd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-198b63d elementor-widget elementor-widget-image\" data-id=\"198b63d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"569\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-1024x569.png\" class=\"attachment-large size-large wp-image-33794\" alt=\"\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-1024x569.png.webp 1024w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-600x333.png.webp 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-300x167.png.webp 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-768x427.png.webp 768w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-1536x853.png.webp 1536w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2021\/11\/Figure-2-2048x1137.png.webp 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 2 : Dispositif plac\u00e9 sur une cl\u00e9 d\u2019accord<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-29828f5\" data-id=\"29828f5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7fa8a2b elementor-widget elementor-widget-image\" data-id=\"7fa8a2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"840\" height=\"537\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/figure3.png\" class=\"attachment-large size-large wp-image-33814\" alt=\"\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/figure3.png.webp 840w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/figure3-600x384.png.webp 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/figure3-300x192.png.webp 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/figure3-768x491.png.webp 768w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 3 : repr\u00e9sentation des trois axes de rotation du t\u00e9l\u00e9phone mesur\u00e9s par l\u2019application Gyroscope de Phyphox.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dcd102 elementor-widget elementor-widget-text-editor\" data-id=\"2dcd102\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Les mesures sont effectu\u00e9es aupr\u00e8s d\u2019au moins 5 apprenant.e.s par niveau et r\u00e9p\u00e9t\u00e9es sur 5 notes pour 3 tessitures diff\u00e9rentes (du fa au la dans les basses, m\u00e9diums, puis aigus), soit 15 mesures au total. Cela permet d\u2019avoir un lot plus grand pour tester l\u2019influence de la g\u00e9om\u00e9trie de la corde, la hauteur de la note sur le geste d\u2019accord et prendre en compte les diff\u00e9rences de r\u00e9sistance de la cheville.<\/span><\/p><p style=\"text-align: justify;\">\u00a0<\/p><p style=\"text-align: justify;\"><b>Premiers r\u00e9sultats :<\/b><span style=\"font-weight: 400;\"> Pour l\u2019instant, les mesures ont \u00e9t\u00e9 effectu\u00e9es aupr\u00e8s des apprenant.e.s en BMA premi\u00e8re ann\u00e9e, BMA deuxi\u00e8me ann\u00e9e et CAP premi\u00e8re ann\u00e9e de l\u2019ITEMM. Les donn\u00e9es sont trait\u00e9es \u00e0 l\u2019aide d\u2019un tableur et d\u2019un programme sous Matlab pour en extraire les informations suivantes :\u00a0<\/span><\/p><ul style=\"text-align: justify;\"><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">La valeur moyenne de la vitesse angulaire filtr\u00e9e (cela permet d&#8217;\u00e9viter les effets de chocs sur la cl\u00e9)<br \/><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">La dur\u00e9e de l\u2019accord par note<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Le sens de rotation de la cl\u00e9 autour de la cheville<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">La r\u00e9gularit\u00e9 dans le geste au fil des diff\u00e9rents accords<\/span><\/li><\/ul><p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Les r\u00e9sultats sont donn\u00e9s dans le <\/span><b>tableau 1<\/b><span style=\"font-weight: 400;\"><b>.<\/b> <\/span><span style=\"font-weight: 400;\">Des courbes sont montr\u00e9es sur les <\/span><b>figures 4 et 5.<\/b><\/p><div id=\"attachment_33818\" style=\"width: 1034px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-33818\" class=\"wp-image-33818 size-large\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/tableau-1-1024x275.png\" alt=\"\" width=\"1024\" height=\"275\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/tableau-1-1024x275.png 1024w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/tableau-1-600x161.png 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/tableau-1-300x81.png 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/tableau-1-768x206.png 768w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/tableau-1.png 1047w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-33818\" class=\"wp-caption-text\">Tableau 1 : Vitesse angulaire dans l&#8217;axe de la cheville, dur\u00e9e de l&#8217;accord, sens et r\u00e9gularit\u00e9 du geste pour les CAP1, BMA1 et 2. Une tr\u00e8s bonne r\u00e9gularit\u00e9 correspond \u00e0 un motif r\u00e9gulier selon les notes accord\u00e9es en termes de rotation et de temps d\u2019accord. Une r\u00e9gularit\u00e9 correcte correspond \u00e0 un motif semblable entre les notes accord\u00e9es bien que le temps d\u2019accord puisse \u00eatre plus ou moins long. Une mauvaise r\u00e9gularit\u00e9 correspond \u00e0 des motifs de geste tr\u00e8s changeants d\u2019une note \u00e0 l\u2019autre.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-992943e elementor-widget elementor-widget-text-editor\" data-id=\"992943e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Ainsi, on peut voir appara\u00eetre des points communs : la plupart des apprenant.e.s accordent en montant au dessus de la note pour redescendre petit \u00e0 petit \u00e0 la justesse (visible sur la figure 4 sur les graphiques gr\u00e2ce au sens de rotation de la cl\u00e9). On peut observer des accords par \u00ab&nbsp;\u00e0-coups&nbsp;\u00bb, qui consistent \u00e0 faire de petits allers-retours au-dessus et en-dessous de la note pour arriver \u00e0 la justesse ; ce qui peut rallonger la dur\u00e9e d\u2019accord d\u2019une corde, peut contribuer \u00e0 une fatigue pr\u00e9matur\u00e9e et une tenue moins bonne de l&#8217;accord.<br \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">La r\u00e9gularit\u00e9 dans le geste d\u2019accord est propre \u00e0 chaque accordeur.euse. Les accordeur.euse.s qui utilisent une technique par \u00ab \u00e0-coups \u00bb ont tendance \u00e0 \u00eatre moins r\u00e9gulier.e.s que les autres (voir figures 4 et 5) : la r\u00e9p\u00e9tition d\u2019un m\u00eame motif de vitesse selon les notes accord\u00e9es t\u00e9moigne d\u2019une plus grande r\u00e9gularit\u00e9).<br \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Enfin, nous constatons qu\u2019il est possible de diff\u00e9rencier un \u00e9l\u00e8ve en CAP1 d\u2019un \u00e9l\u00e8ve en BMA \u00e0 l\u2019aide de deux principaux crit\u00e8res : la dur\u00e9e de l\u2019accord et la vitesse angulaire de la cl\u00e9 que l\u2019on peut associer \u00e0 l\u2019amplitude et \u00e0 la rapidit\u00e9 de son mouvement. Ainsi, un BMA aura g\u00e9n\u00e9ralement un geste plus franc et une dur\u00e9e d\u2019accord plus courte qu\u2019un CAP1. Ce simple constat, tir\u00e9 des mesures de geste, constitue un suivi scientifique pour l\u2019efficacit\u00e9 de l\u2019apprentissage des techniciens \u00e0 l\u2019ITEMM. Les r\u00e9sultats issus de cette exp\u00e9rience feront par ailleurs l&#8217;objet d&#8217;un article scientifique.<br \/><\/span><\/p><p><span style=\"font-weight: 400;\"><br \/><\/span><\/p><p><span style=\"font-weight: 400;\">Auteurs : Alicia DESEILLE, Romain VIALA<br \/><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-63e371b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"63e371b\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-3ce06a9\" data-id=\"3ce06a9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9022ca4 elementor-widget elementor-widget-image\" data-id=\"9022ca4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"765\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4A-1024x765.png\" class=\"attachment-large size-large wp-image-33822\" alt=\"\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4A-1024x765.png.webp 1024w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4A-600x448.png.webp 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4A-300x224.png.webp 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4A-768x574.png.webp 768w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4A-1536x1148.png.webp 1536w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4A-2048x1531.png.webp 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 4 : Courbe pour la mise au ton de 440 \u00e0 442 Hz sur 8 cordes du registre medium Fa \u00e0 Sol, avec des cordes tripl\u00e9es. On observe le fait de tendre puis d\u00e9tendre la corde, avec pour la plupart des cas seulement un aller retour (forme de pic), et pour le dernier cas un encha\u00eenement tension \/ rel\u00e2chement \/ tension soit un pic plus une reprise par le bas. <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-cf07199\" data-id=\"cf07199\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-730abed elementor-widget elementor-widget-image\" data-id=\"730abed\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"767\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4B-1024x767.png\" class=\"attachment-large size-large wp-image-33823\" alt=\"\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4B-1024x767.png.webp 1024w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4B-600x450.png.webp 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4B-300x225.png.webp 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4B-768x575.png.webp 768w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4B-1536x1151.png.webp 1536w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-4B-2048x1534.png.webp 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">La cheville se d\u00e9place de 5 degr\u00e9s environ entre l\u2019aller et le retour (un pic)  et revient \u00e0 une position l\u00e9g\u00e8rement sup\u00e9rieure apr\u00e8s le pic car il fallait tendre la corde. Le geste est assez r\u00e9p\u00e9table, on peut voir que les 8 chevilles ont \u00e9t\u00e9 tourn\u00e9es au total de 8 \u00b0 (la diff\u00e9rence entre les positions d\u2019\u00e9quilibre, soit un degr\u00e9 seulement par cheville pour passer d\u2019un diapason de 440 \u00e0 442 Hz en moyenne). Pour le 5\u00e8me pic, la diff\u00e9rence est plus marqu\u00e9e, a priori la corde \u00e9tait trop basse. Il s\u2019agit de la m\u00e9thode d\u2019accord qui est pr\u00e9conis\u00e9e et enseign\u00e9e dans le chapitre \u201cPratique de l\u2019accord\u201d de l\u2019ouvrage Le Piano, de Arthur Reblitz, disponible \u00e0 l\u2019ITEMM.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-dd2ef5d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dd2ef5d\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-e75b2db\" data-id=\"e75b2db\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2c05132 elementor-widget elementor-widget-image\" data-id=\"2c05132\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5A-1024x768.png\" class=\"attachment-large size-large wp-image-33824\" alt=\"\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5A-1024x768.png.webp 1024w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5A-600x450.png.webp 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5A-300x225.png.webp 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5A-768x576.png.webp 768w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5A-1536x1152.png.webp 1536w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5A-2048x1536.png.webp 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 5 : Courbe pour la mise au ton de 440 \u00e0 442 Hz sur 8 cordes du registre medium Fa \u00e0 Sol, avec des cordes tripl\u00e9es. On observe cette fois-ci que le fait de tendre puis d\u00e9tendre la corde est beaucoup plus al\u00e9atoire. Il semble que la personne accorde par \u00e0-coups et chocs. <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-61202dc\" data-id=\"61202dc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e932c67 elementor-widget elementor-widget-image\" data-id=\"e932c67\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"769\" src=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5B-1-1024x769.png\" class=\"attachment-large size-large wp-image-33826\" alt=\"\" srcset=\"https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5B-1-1024x769.png.webp 1024w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5B-1-600x450.png.webp 600w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5B-1-300x225.png.webp 300w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5B-1-768x577.png.webp 768w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5B-1-1536x1153.png.webp 1536w, https:\/\/itemm.fr\/itemm\/wp-content\/uploads\/2022\/01\/Figure-5B-1-2048x1537.png.webp 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Pour finir, la cheville revient assez proche de sa position initiale. La valeur de d\u00e9placement angulaire finale est  l\u00e9g\u00e8rement plus \u00e9lev\u00e9e que la valeur de d\u00e9part. Le geste est assez peu r\u00e9p\u00e9table et l\u2019accord de 8 cordes (8 chevilles) prend deux fois plus de temps que sur la figure pr\u00e9c\u00e9dente 4.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-7ae58202 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7ae58202\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-3387f176\" data-id=\"3387f176\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1299c5ba elementor-widget elementor-widget-heading\" data-id=\"1299c5ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Partager cet article<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-4f309c16\" data-id=\"4f309c16\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4ce3115a elementor-share-buttons--view-icon elementor-share-buttons--skin-flat elementor-share-buttons--color-custom elementor-share-buttons--shape-square elementor-grid-0 elementor-widget elementor-widget-share-buttons\" data-id=\"4ce3115a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\" role=\"list\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_facebook\" role=\"button\" tabindex=\"0\" aria-label=\"Partager sur facebook\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-facebook\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_linkedin\" role=\"button\" tabindex=\"0\" aria-label=\"Partager sur linkedin\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-linkedin\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_twitter\" role=\"button\" tabindex=\"0\" aria-label=\"Partager sur twitter\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-twitter\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_email\" role=\"button\" tabindex=\"0\" aria-label=\"Partager sur email\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fas fa-envelope\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-70de8f0a elementor-widget elementor-widget-spacer\" data-id=\"70de8f0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Contexte : Le projet TEACH (Towards E-learning Academy for Cultural Heritage) s\u2019int\u00e9resse \u00e0 la num\u00e9risation du contenu de l\u2019apprentissage des techniciens piano de l\u2019ITEMM. Le but est de cr\u00e9er une plateforme mutualis\u00e9e de connaissances et de ressources digitalis\u00e9es utilisable par les formateurs piano et leurs apprenants, \u00e0 distance. Les diff\u00e9rents contenus porteront sur le r\u00e9glage&hellip;<\/p>\n","protected":false},"author":3004,"featured_media":33794,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[245,2177],"tags":[1892,2742],"class_list":["post-33790","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innovation","category-recherche-appliquee-organologie","tag-pole-innovation","tag-projet-teach"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Campagne exp\u00e9rimentale pour l\u2019\u00e9tude du geste de l\u2019accordeur de piano | Itemm -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itemm.fr\/itemm\/campagne-experimentale-pour-letude-du-geste-de-laccordeur-de-piano\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Campagne exp\u00e9rimentale pour l\u2019\u00e9tude du geste de l\u2019accordeur de piano | Itemm -\" \/>\n<meta property=\"og:description\" content=\"Contexte : Le projet TEACH (Towards E-learning Academy for Cultural Heritage) s\u2019int\u00e9resse \u00e0 la num\u00e9risation du contenu de l\u2019apprentissage des techniciens piano de l\u2019ITEMM. 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