|  | G |
SECTION G — PHYSICS

INSTRUMENTS

|  | G10 |
MUSICAL INSTRUMENTS; ACOUSTICS

|  | G10 |
Note(s) This class covers generally all sound-emitting devices, whether or not they may be considered as being musical. The term "musical instrument", used in this class, should not be understood as excluding devices emitting a single sound signal. For the convenience of users, the following Class Index is given in place of Sub-class Indexes, to show the grouping of the elaborations belonging to different sub-classes, under the three fundamental types: Wind instruments String instruments Percussion instruments which relate clearly to the majority of instruments. There are of course some instruments of which the principle of operation belongs less clearly to one of these three types. They correspond to groups Fulltext... Hierarchy... Expanded...G10D 17/00 and Fulltext... Hierarchy... Expanded...G10K 7/00, Fulltext... Hierarchy... Expanded...G10K 9/00, Fulltext... Hierarchy... Expanded...G10K 10/00, all the other groups normally finding a definite place.

|  | G10G |
AIDS FOR MUSIC (metronomes Fulltext... Hierarchy... Expanded...G04B 21/00; teaching music Fulltext... Hierarchy... Expanded...G09B 15/00)

|  | G10G 1/00 |
Means for the representation of music

|  | G10G 1/02 |
· | Chord or note indicators, fixed or adjustable, for keyboards or fingerboards

|  | G10G 1/04 |
· | Transposing; Transcribing

|  | G10G 3/00 |
Recording music in notation form, e.g. recording the mechanical operation of a musical instrument (perforating per se Fulltext... Hierarchy... Expanded...B26F)

|  | G10G 3/02 |
· | using mechanical means only

|  | G10G 3/04 |
· | using electrical means

|  | G10G 5/00 |
Supports for musical instruments

|  | G10G 7/00 |
Other auxiliary devices, e.g. separate holder for resin, separate holder for strings, conductors' batons

|  | G10G 7/02 |
· | Tuning forks or like devices