A groovebox where every part is always in key.
Chords, drums, bass, melody and a synth at your fingertips. The hard parts of music theory, made simple to play. A studio in your pocket.
For iPhone. No account, no ads, no tracking.
Play first. Theory follows.
Pick a key and a mode and everything you touch lands in tune with everything else. Chords, bass, melody and arpeggios all follow the same chord timeline, so you can't play a wrong note, only a surprising one.
Chords
Diatonic chord pads with Roman numerals and Nashville numbers, borrowed chords, and any chord you can write: 13♭9 and 7♯9♭13 play exactly as spelled.
Drums
A step sequencer with a kit of its own, swing, per-drum shaping and the option to load your own sample for any drum.
Bass & arp
A bass line and an arpeggiator that follow your chords, so the whole band changes when you do.
Melody
Play it live on a keyboard that only offers notes in key, or sequence it. Bend, hold and mod with your thumb.
mõdSynth
A synth built for the app, with its engine written in native code so it stays steady under your fingers.
Song builder
Chain sections into a song, save it to your setlist, and bounce audio or MIDI when you want to take it somewhere else.
Sampler & mõdFX
Record from the microphone or resample the app itself, then run every part through its own effects chain.
MIDI
Connect a Bluetooth MIDI keyboard or controller, and map its knobs to anything on screen.
Chord sheets
Paste a chord sheet from the web and mõdRïff builds the chart: sections, repeats and a guess at the key.
It stays on your phone.
mõdRïff has no accounts, no analytics, no ads and no third-party code. Your songs, patterns and recordings are stored on your device and go nowhere unless you choose to share them. Read the privacy policy.