Find your
next chord.
A keyboard built for songwriters.
Explore 35 chord flavors, audition presets across genres, and turn ideas into MIDI and WAV — all from a single, tactile keyboard.
Download on the App Store
Sequencer built in.
Build 2-, 4-, or 8-bar progressions on a 1/16-note grid. Set BPM, swing, and sustain. Save your jam, load it later, or export the whole thing as WAV or MIDI for your DAW — the export sounds exactly like in-app playback, effects and all.
- 16-step grid per bar with chord-block tail dragging
- Per-row chord and octave overrides
- Swing 0–100%, tap-to-set BPM
- FX rack: reverb, delay, master filter
- Save and load jams across sessions
Built for ideas in motion
A focused tool that gets out of your way. Tap a key, hear a chord, build a song — without ever leaving the keyboard.
35 Chord Flavors
From simple triads to maj13, m7♭5, 6/9, and altered jazz chords — every flavor you need to colour your progression, ordered most-common to rare.
12 Genre Presets
Pop, House, Jazz, R&B, Lo-Fi, Cinematic, Chill, Funk, Bossa Nova, Gospel, Blues, Neo-Soul. One tap and the whole keyboard sounds like the genre.
Built-in Sequencer
Lay down a 2, 4, or 8-bar chord progression with swing, sustain control, and 1/16-note resolution. Save jams, load them later.
WAV & MIDI Export
Export your sequencer as a fully-rendered audio file or as MIDI for your DAW. The export sounds exactly like the in-app playback — including effects.
Multiple Sound Packs
Piano, House Piano, Lo-Fi Rhodes, Dance Piano, Kalimba — sample-based instruments tuned for songwriting. More packs coming.
LEARN Mode
Tap a chord to see its notes on a piano or guitar diagram. Great for picking up theory while playing.
How it works
Not a piano. The keys represent positions in your scale — so the same finger movement plays the same kind of progression in any key.
Pick your key
Choose any major or minor key from the top bar. The whole keyboard re-tunes around your selection.
Press positions, not notes
Each key is a scale degree (I, ii, iii, IV, V, vi, vii°). The same hand position plays a I-V-vi-IV in C, in F♯, in any key.
Spot the tonic instantly
The I key (major root) glows teal, the vi key (relative minor) glows pink — see at a glance where you are.
New to scale degrees? Read the full explanation in support.
Start writing.
Chordhaus is available now on the App Store. iPhone, iPad, landscape — wherever you write.
Download on the App Store