Open Music System (OMS) was a virtual studio management application by Opcode Systems, Opcode for the Mac OS#Versions, Classic Mac OS. Similar to FreeMIDI by Mark of the Unicorn and Audio MIDI Setup by Apple Computer, Apple, OMS used a Graphical user interface, GUI to manage MIDI devices by providing Digital audio workstation, DAW applications and the Mac OS with information regarding the physical setup of MIDI devices connected to the computer.
OMS was orphaned technology, orphaned by its owners, Gibson (guitar company), Gibson in 2009
[2 September 2009.]
Opcode Web site finally taken down
CNET and is now abandonware.
References
MIDI
Classic Mac OS software
{{Music-software-stub