Optically, magnetically, and/or electronically pre-recorded musical program material on Compact Discs, CD-ROMS, diskettes, cassette tapes, and microchips for use in player pianos; piano playing mechanisms comprising an electronic controller, power supply, solenoids, and printed circuit boards for operating a piano and/or converting a conventional piano into a self-playing player piano

Electronic Music Reproducing System-Namely, Electronic Tape Recorder and Player for Attachment to and Incorporation in Keyboard Instruments; and Prerecorded Magnetic Cassette Tapes for Use Therewith