Music theory trainer
Learn intervals, scales and chords on a piano (or guitar), then drill them by sight and by ear. Missed questions come back more often until they stick.
Play
Tap a key or play with your computer keyboard.
IntervalsThe distance between two notes: names, sizes, and how they sound up, down and together.
Scales and modesMajor, the three minors, the seven modes, pentatonic and blues, in every key.
ChordsTriads and seventh chords, their formulas and inversions, on piano and guitar.
Circle of fifthsKey signatures, relative minors and the chords in each key.
PracticeName what you see, name what you hear, or find a note on the keyboard. Three levels.
ProgressAccuracy and streaks for each drill, and what needs work.
Works offline
Every sound is made in the browser, so nothing needs downloading. Progress is saved on this device only.