Moog Sub 37 Tribute Edition 2-Note Paraphonic Analog Synthesizer Bundle with Keyboard Stand, Expression Pedal, and Polishing Cloth Perform in Monophonic or Duo-Paraphonic modes 37-note velocity sensitive keyboard w/ aftertouch 2 modulation busses w/ assignable source and destinations DAHDSR (Delay, Attack, Hold, Decay, Sustain, Release) looping envelopes with sync 256 Presets -16 banks of 16 patches