I first composed an earlier version of this in 1993, at that time using a combination of Roland Sound Canvas, and Yamaha SY22
It is now considerably rewritten and added to, and works entirely in one instance of the Yoshimi Soft Synth. Also using all 16 MIDI channels, and recorded in a single pass, with no external effects/adjustments.
It now becomes my answer to people who claim you can't get decent drums with a soft synth
https://soundcloud.com/soft-sounds/slinky