(There's no video for Opcode Vision 2.0.8 & Galaxy 1.2.9 yet. Please contribute to MR and add a video now!)
Opcode Vision was one of the best MIDI sequencing software ever made. These disks have copy protection integrated into them and are required for activation of the product.
This includes Opcode Galaxy MIDI Librarian software.
this version of galaxy, galaxy version 1.2.9 is from 1995!
(6.7 MiB / 7.03 MB)
SIT file containing disk images / compressed w/ Stuffit
I have not had much success installing in BasiliskII; however, the software works fine on actual Mac hardware.
Emulating this? It could probably run under: Basilisk II