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this auction"The Six-Trak is a 6-voice, Polyphonic, Multi-timbral, programmable Analog Synthesizer with a very powerful MIDI implementation, a sequencer, an arpeggiator, and a 4-octave, 49-note (C-C) keyboard.
Its built-in 800 note 6-track sequencer is very easy to use and allows one the record 2 multi-timbral sequences with individual volume controls on each track.
Its arpeggiator is really very cool – it can be switched to up, down, or assignable, which arpeggiates notes in the order they were played!
The Six-Trak can be operated in polyphonic, unison mode, and "stack" mode. In Unison mode, all six oscillators play at once, giving it a very fat and rich sound. In Stack mode, each voice can be set to a different sound patch and played as one complex monophonic sound.
It also features a pitch wheel, a modulation wheel that controls the LFO amount, MIDI IN, MIDI OUT, a stereo audio out jack which doubles as a headphone jack, and a footswitch jack."