| Class | Class Name |
|---|---|
| 15 | accordions |
| 15 | acoustic and electric guitars |
| 15 | acoustic pianos |
| 15 | bagpipes |
| 15 | balalaikas [stringed musical instruments] |
| 15 | bamboo flutes |
| 15 | bandonions |
| 15 | banjos |
| 15 | barrel organs |
| 15 | basses [musical instruments] |
| 15 | bellows for musical instruments |
| 15 | bow nuts |
| 15 | bow nuts for musical instruments |
| 15 | bows |
| 15 | bows for musical instruments |
| 15 | brass instruments |
| 15 | bridges for musical instruments |
| 15 | buccins |
| 15 | buccins [trumpets] |
| 15 | carillons |
| 15 | carillons [musical instruments] |
| 15 | cases for cellos |
| 15 | cases for double basses |
| 15 | cases for guitars |
| 15 | cases for musical instruments |
| 15 | cases for violas |
| 15 | cases for violins |
| 15 | castanets |
| 15 | catgut for musical instruments |
| 15 | cellos |
| 15 | chin rests for violins |
| 15 | Chinese musical instruments |
| 15 | clarinets |
| 15 | clarionets |
| 15 | clarions |
| 15 | colophony for stringed musical instruments |
| 15 | concertinas |
| 15 | conductors' batons |
| 15 | cornets |
| 15 | cornets [musical instruments] |
| 15 | cymbals |
| 15 | dampers for musical instruments |
| 15 | digital pianos |
| 15 | double basses |
| 15 | drumheads |
| 15 | drums |
| 15 | drums [musical instruments] |
| 15 | drumsticks |
| 15 | drumsticks for use with percussion instruments |
| 15 | electric basses |
