Sequential TOM 1985 Model 420 Drum Machine w/ CONTEMPORARY Cartridge

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via this auction

"The TOM was used by Prince Paul back in the Stetsasonic and De La Soul days (there's an interview on Unkut.com and a De La Soul press kit on YouTube). Also said to have been used on Tackhead and Keith Leblanc albums. A ripping effect can be acheived by "turning auto-repeat on with a very fast repeat, holding down a key for a drum, varying the volume with the mod wheel, and varying the pitch with the pitchbend wheel or lever" (search Sequential Tom on Synthmuseum.com). The midi specs and Contemporary Cartridge were developed by Chris Meyer who also worked on the DrumTraks and the Studio 440. Allows "chords of drums to be played, chromatic playing of drums, the same samples to be played together with a slight delay to cause a deep flange sound, etc."

The band Truckasaurus uses their Tom as the "Master" midi/sync and drum machine (check out their tumblr - truckasaurus.com and also search "BSTV: How to Make a Beat with Truckasaurus" on YouTube)."