The first synthesizer with a pitch wheel was the Minimoog, in 1970.
Alternatively, pitch bend controllers on synthesizers may have appearance of joystick, knob, or ribbon.
In the MIDI specification, the pitch wheel may send 16,384 possible variation values. The General MIDI specification recommends that the total range be ±2 semitones, though this Pitch Wheel Range (or Sensitivity) can be adjusted using General Midi Registered Parameter Number 0, 0.
- Pitch Wheel (MIDI specification)
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