| 1/00 | Means for the representation of music |
| 1/02 | Means for the representation of music Chord or note indicators, fixed or adjustable, for keyboards or fingerboards |
| 1/04 | Means for the representation of music Transposing; Transcribing |
| 3/00 | Recording music in notation form, e.g. recording the mechanical operation of a musical instrument |
| 3/02 | Recording music in notation form, e.g. recording the mechanical operation of a musical instrument using mechanical means only |
| 3/04 | Recording music in notation form, e.g. recording the mechanical operation of a musical instrument using electrical means |
| 5/00 | Supports for musical instruments |
| 7/00 | Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings |
| 7/02 | Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings Tuning forks or like devices |