Device for teaching music
Device for transfer of a conventional note system into a system
Device to identify chords on a keyboard instrument and key mecha
Device, method and system for the visualization of stringed...
Devices for removing and separating moisture from woodwind...
Devices for selective display of information
Digital audio signal processor
Digital audio signal processor employing multiple filter fundame
Digital aural musical instrument tuning
Digital chord display for stringed musical instruments
Digital electronic tuner
Digital pulsing visual metronome
Digital pulsing visual metronome
Digital read-out electronic metronome
Digital solid state recording of signals characterizing the play
Disco lamp controller for coin-operated phonograph
Display apparatus for electronic musical instrument
Display apparatus for visually impaired persons
Display device for guitar tuners and method of displaying...
Displaying an input at multiple octaves