Piano Theory

Learn why, not just which key.

Twenty-four short lessons take you from finding any note on the keyboard to reading a page of music and playing a song with both hands. Every lesson ends on a real song.

What you learn

The keyboard, tones and semitones. Major and minor chords, inversions, arpeggios and the six chords of a key. Finding a song's key by ear. Treble and bass clef, rhythm, key and time signatures, rests and ledger lines. Melody in the right hand, chords in the left.

How it works

One card at a time. A lit key shows what to play, and the staff and the keyboard light together. Play on the screen or on your own piano: the app listens through the microphone. It waits for you, or plays in time when you are ready. Bring your own songs from MIDI or MusicXML files.

Price

Lessons 1 to 3 are free for good, and one song of your choice. The rest of the course and the songs are a subscription with a free week, or a one-time lifetime purchase. No ads, no account.