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Player - GEMS.png
Creator Jonathan Miller, Burt Sloane, Chris Grigg, Mark Miller
Released 1991-??-??
Platform DOS

GEMS (Genesis Editor for Music and Sound Effects) is a piece of proprietary music software for DOS used solely for creating music on the Sega Genesis and Sega 32X in the proprietary format MOD (GEMS). The program was created by Jonathan Miller, Burt Sloane, Chris Grigg and Mark Miller. The program is MIDI compatible to make it easier to use.

It is estimated that close to 200 Genesis and 32X games used GEMS for music and sound.

GEMS was heavily criticized by video game music listeners because of its low fidelity in instrument design, but this was a fault of the default instrument patches. They could be modified (which they sometimes were) to produce a more realistic sound.


The following composers used GEMS:


Version Download Platform Notes
2.1 Download - (info) DOS Includes source for several versions.