As of December 2025, Sine Machine has rudimentary MPE support for polyphonic pitch and global pitch bend.
Sine Machine doesn’t yet have a way to route MPE slide/pressure.
MPE stands for MIDI Polyphonic Expression.
MPE is a standard that lets you play fancier hardware keyboards and input devices like the Linnstrument or Osmose with software synths like Sine Machine.
A normal MIDI keyboard just sends Sine Machine very simple note on/off messages and velocity.
MPE-enabled keyboards continuously send pitch, pressure and aftertouch per-note played (that’s what polyphonic refers to, notes are completely independent).
It basically lets your fingers be manual modulators of a synth’s pitch and timbre, which is pretty cool because that’s how “real” instruments work.
A technical note on MPE Pitch Bend Range
Sine Machine’s MPE per-note pitch bend range is +/- 48 semitones which matches the MPE standard and what common controllers the Osmose and the Seaboard default to out of the box.
That might sound like a huge range — but it’s not the same thing as global Pitch Bend (aka the pitch wheel).
Instead, you can think of it as the maximum pitch range a single note will ever be able bend.
I’s important that Sine Machine’s setting matches the hardware being used.
Leave a Reply