| 984 / | HD | MUSICAL INSTRUMENTS |
| 300 | DD | ELECTRONIC MUSICAL INSTRUMENTS {structural combinations of microphones, pick-ups, or amplifiers with musical instruments subclasses 1+, 50+, and 100+; Instruments in which each note is generated by a different individually-actuated mechanical resonating structure and is amplified electrically subclasses 50+; Instruments in which each note is produced by a different electrically-vibrated sounding element subclasses 100+; Electronic circuits in general H03. {G10H} {4} |
| 355 | | .~ Instruments in which the tones are generated by electromechanical means {G10H 3/00} {3} |
| 356 | DD | .~.~> Using mechanical interrupters {G10H 3/02} |
| 357 | DD | .~.~> Using pick-up means for reading recorded waves, e.g., on rotating discs, drums, tapes, or wires, etc. {G10H 3/03} {3} |
| 362 | DD | .~.~> Using mechanical resonant generators, e.g., strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument {G10H 3/12} {3} |