diff --git a/web/app/assets/images/content/icon_instrument_piano24.png b/web/app/assets/images/content/icon_instrument_piano24.png
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diff --git a/web/app/assets/images/content/icon_instrument_piano45.png b/web/app/assets/images/content/icon_instrument_piano45.png
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diff --git a/web/app/assets/images/content/icon_instrument_upright_bass24.png b/web/app/assets/images/content/icon_instrument_upright_bass24.png
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diff --git a/web/app/assets/images/content/icon_instrument_upright_bass45.png b/web/app/assets/images/content/icon_instrument_upright_bass45.png
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diff --git a/web/app/assets/images/shared/icon_piano_256.png b/web/app/assets/images/shared/icon_piano_256.png
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diff --git a/web/app/assets/images/shared/icon_upright_bass_256.png b/web/app/assets/images/shared/icon_upright_bass_256.png
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diff --git a/web/app/assets/javascripts/utils.js b/web/app/assets/javascripts/utils.js
index 1d77bca84..b3e27859e 100644
--- a/web/app/assets/javascripts/utils.js
+++ b/web/app/assets/javascripts/utils.js
@@ -59,13 +59,13 @@
         "mandolin":"mandolin",
         "oboe":"oboe",
         "other":"other",
-        "piano":"keyboard",
+        "piano":"piano",
         "saxophone":"saxophone",
         "trombone":"trombone",
         "trumpet":"trumpet",
         "tuba":"tuba",
         "ukulele":"ukelele",
-        "upright bass":"cello",
+        "upright bass":"upright_bass",
         "viola":"viola",
         "violin":"violin",
         "voice":"voice"