MIDI Piano & Guitar Chords

MIDI Piano & Guitar Chords is a complete music theory companion for piano and guitar players — chord detection, chord generation, scales, intervals, the circle of fifths, and a metronome, all in one app.

CHORD DETECTION Play notes on the on-screen keyboard, a connected MIDI keyboard, or your guitar and instantly see the chord name, notes, and intervals on the staff.

CHORD GENERATOR Pick a root note and chord type (major, minor, 7th, sus, dim, aug, and more) and see it on piano, guitar fretboard, and staff, with inversions and multiple guitar voicings to choose from.

CIRCLE OF FIFTHS Tap a sector to explore diatonic chords in any key. Long-press to set the tonic and instantly see every chord that belongs to that key.

SCALES Browse major, minor, modes, pentatonic, blues, and more. See note names, intervals, and documented piano fingering for both hands, with adjustable tempo and octave range.

INTERVAL DETECTION Play two notes and get the interval name, semitone count, and a familiar song example to help you memorize it by ear.

METRONOME A visual and audible metronome with adjustable tempo, beats per bar, subdivisions, and accent — and the piano stays interactive while it runs.

MIDI SUPPORT Connect a MIDI keyboard to play and detect chords, or route sound to a connected MIDI device with the correct instrument (piano or guitar).

Built for students, teachers, and musicians who want to understand what they're playing — on piano or guitar — without leaving the practice room.