(There's no video for Virtual Composer 2.9 yet. Please contribute to MR and add a video now!)
Virtual Composer is a graphical multichannel sequencer, editor and QuickTimeì Musical Instruments executor designed to execute perfectly timewise complex polyphonic music.
Virtual-Composer-2-9.5.sit (1.86 MiB / 1.95 MB)
/ compressed w/ Stuffit
From Mac OS 7.5
Emulating this? It should run fine under: SheepShaver