Sing something
Tap to start, then sing or hum a melody. Hold each note for a moment to identify the key.
See the chords
Tap again to stop. The eight chords of that key appear, labelled by scale degree.
Write your progression
Work out the chord progression that fits your melody with the eight chord buttons.
Switch voicings
Press SHIFT CHORD VOICING and tap a chord button to change to sevenths, sus2, sus4, add9, first inversion or no third. RESET returns all chords to triads.
It is laid out like a calculator, and it installs like one: add it to your home screen and use it offline.
