Automatic note detection
Ready to tune
Allow microphone access to start tuning.
Pluck one open string and let it ring. A chime confirms it’s in tune.
Your microphone audio stays on this device.
Play only the three marked strings. Fret 0 is an open string.
Low E → high e · × mute · ○ open
Solid marker = root · Dots show notes, not fingers.
Open grips ring freely. Movable shapes give you more control over muting. Compact voicings leave space for a bass player or another guitar.
A curated set of practical grips in standard tuning, through fret 15 — not every possible fingering. Shells intentionally omit the fifth. Choose a shape that suits your hands and the arrangement.
References: JustinGuitar barre chords · Tom Quayle’s shell voicings · Open Music Theory harmony