Random Tandem:
Pre-recorded audio cassette
Random Tandem:
Digital Audio Tape (DAT)
Random Tandem:
Mac file storage data discs
Random Tandem:
Recordable minidisc walkman
Random Tandem:
Multi-pack recordable minidisc
Random Tandem:
Chord Zither
Random Tandem:
Whistles
Random Tandem:
Pentatonic Chimes
Random Tandem:
Dove Chimes