Tools · all free, no account

The toolkit

Pick a tool. Each one generates everything from music theory and math, and links back to the lesson that explains it.

See the five CAGED shapes tile the neck in any key, with chord-tone and scale overlays.

Any chord, nine flavors, five positions up the neck, with every note and interval labeled.

Interactive wheel: key signatures, the seven chords of every key, and classic progressions.

Build a progression that changes key: pivot chords, dominant routes, and a hands-on builder.

Pick the key a song sounds in; get every capo position and shape family that plays it, with full chord translations.

Mic-based tuner with a cents gauge for guitar, bass, banjo, and ukulele: many tunings, strings and chromatic modes, adjustable reference pitch.

Build charts in numbers, see them wear chords in two keys at once, then drill both directions in quiz mode.

Three drills with synthesized audio: intervals, chord colors, and progression recognition, each in three levels.

Sample-accurate metronome plus a tempo ladder: climb a few bpm per clean pass, manually or on autopilot.

A looping synthesized backing band: any progression in all 24 major and minor keys, four feels, drums optional.