Fret

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Play a string

Tune up

Allow the mic and pluck one string at a time. It works out which string you're on. Tap a string below to hear it.

Microphone off

How it works: 60 times a second the last tenth of a second of audio goes through the YIN pitch detector. It finds the period by comparing the signal with shifted copies of itself, which copes with a guitar's strong overtones better than an FFT peak.

C

C major

Shapes are searched, not stored: every fingering inside a four-fret stretch is tried, kept if it has all the notes and no more than four fingers, then ranked by how easy it is to play. Click a shape to hear it.

RootIn the scaleClick any note to hear it