Devices used in connection with a musical instrument, but not necessary to the production of music. Includes testing devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
169, for indicators related to a self playing instrument.
SEE OR SEARCH CLASS
248, Supports,
396, and 397 for a piano stool or bench having a tiltable support surface which may remain horizontal while the occupant is playing a piano manually, but which may be tilted forwardly to support the occupant in a position to facilitate pumping an organ bellows or player piano mechanism with his feet and subclasses 441.1+ for an easel, book or music score holder.
