OR-1 MIDI Sequencer
MIDI sequencer, no synth
Free · Designed for iPad. Not verified for macOS.
iPad
OR-1 makes no sound on its own. It's a generative MIDI Note-FX — the brain, not the sound source — that plays your own synths, samplers, and drum machines for you…
- Euclidean
- Polyrhythm
- Stochastic drift
- Modulators
- Scale quantizer with chord lock
- Temp and random for performance
- MIDI Learn
Ratings & Reviews
Fixes a bug that prevented OR-1 from opening in Ableton Live and other hosts — the plug-in identified itself as an audio effect rather than an instrument, so hosts refused to load it on a track.
Fixes the plug-in interface becoming unresponsive when hosted in AUM and other AUv3 hosts, which previously required restarting the host app.
The interface now scales to fit the host's panel, so every control is reachable without scrolling.
Parameter values now display in readable units — Drift, Gate and Level as percentages, modulator Rate in Hz.
Note: OR-1 is a MIDI sequencer. It generates MIDI to drive your own instruments and produces no sound on its own.
The developer, Jori Eero Larres, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jori Eero Larres
- Size
- 9.8 MB
- Category
- Music
- Compatibility
Requires iPadOS 15.0 or later.
- iPad
Requires iPadOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPad
- Age Rating
4+
- 4+
- Copyright
- © 2026 Organismi Instruments
