Acoustic guitar reference

Guitar keys, chords and tunings you can hear

Pick a key, a chord or a tuning. Each page shows it on the fretboard and plays it, so you can check what you hear against the guitar in your hands.

Tune your guitar Find a song's key free microphone tuner and song key finder, audio stays on your device

Tools

Tools that run in the browser. The tuner and key finder use your microphone; audio stays on your device.

Each major and minor key: its notes, the seven chords, the relative key and capo options.

Chord diagrams with fingering, the easy and barre versions, and a button to hear each one.

Scale shapes on the fretboard with note names or scale degrees.

Standard and alternate tunings, with the steps to retune from standard.

A beginner path from tuning to first songs, plus short guides on rhythm, guitar anatomy, strings and setup.