Fretboard Note Lab Open →
Learn where every note lives. A color-coded note map you can hide to test yourself, patterns drawn on the neck, a find-every-note drill, and a naming quiz that tracks your weak spots.
02Fretboard Key Lab Open →
Pick any of the 24 major and minor keys and build a progression. See the scale, chord tones, triad inversions, full chord shapes, voice leading, and every chord in the key at one position on the neck.
03C Major Rhythm Trainer Open →
A metronome with a one-bar 4/4 view. Play the C major scale in six positions as quarter notes, eighths, triplets and sixteenths, and see how each rhythm lines up with the beat.
The numbers are a suggested order: notes first, then chords and keys, then timing. Every page plays sound. Tap a button first, and on iPhone turn off the silent switch. Your settings and quiz stats are saved in the browser you use.