MIDI synth sound libraries still available

If you were around in the late 1980s and early 1990s you may
have seen full page ads for Cesium Sound in Keyboard and
Electronic Musician.

Sound libraries are still available as Sysex files for
01/W, SY-85, JD-990, ESQ-1, SQ-80, TX81Z, D-50, D-550, VFX,
VFXSD, SD-1, Proteus/1, Proteus/2, and Wavestation.

SQ-80 and ESQ-1 sounds compatible with the VSTi SQ-80 emulator
available at http://www.buchty.net/ensoniq/

http://www.cesiumsound.com/