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In electronic music, a pitch wheel, pitch bend or bender is a control on a synthesizer to vary the pitch in a continuously variable manner (portamento).

The first synthesizer with a pitch wheel was the Minimoog, in 1970.^[1]

Alternatively, pitch bend controllers on synthesizers may be implemented as a joystick, knob, or touch-sensitive ribbon.^[2]

MIDI represents pitch bend as a 14-bit integer, allowing for 16,384 possible values. General MIDI implementations default to a range of ±2 semitones.^[3]

• Glissando

• Pitch Bend Wheel, at Dailyanalog

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