The MIDI Manufacturers Association (MMA) has ratificated a new extension to MIDI, MPE (MIDI Polyphonic Expression). MPE enables electronic instruments such as synthesizers to provide a level of expressiveness typically possible only with acoustic instruments. Prior to MPE, expressive gestures on synthesizers—such as pitch bending or adding vibrato—affected all notes being played. With MPE, every … Continue reading MIDI Polyphonic Expression (MPE) enhancement adopted to the MIDI Specification