Tap notes anywhere on the fretboard to build a shape — Fr3tLab names it. Works in any tuning, any number of strings. The lowest note is treated as the bass.
Tap the notes you’re playing on the fretboard — Fr3tLab lists every scale that contains them, ranked by how tightly they fit. Tap a result to load that scale on the neck. Works in any tuning.
Focusing {{ focusName }}only this chord's notes (within the key) are lit
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BPM
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Beats
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Tuner
Tap a string to hear its true pitch, then tune your guitar until the two match. Tracks your current tuning, low to high.
Change your tuning or string count up top — the reference tones follow.
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Chords in this key
— tap one to spotlight it on the neck
TRIADS
SEVENTHS
Diatonic chords are listed for 7-note (heptatonic) scales. Switch to a major, minor, mode, or melodic-minor scale to see the full chord set.
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Playable shapes in this tuning
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No compact shape found for this chord in the current tuning and fret range. Try widening the fret range or a different tuning.
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Sweep / arpeggio shapes
Each shape is one note per string — tap ▶ to hear it swept ascending then descending.
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No compact sweep shape found in the current tuning/fret range. Widen the fret range or change tuning.
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BPM
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Pick a progression
In {{ progTitle }} that's — tap a chord to spotlight it
Solo / sweep palette
The neck is lit with the {{ progTitle }} scale — every safe note to solo with. Every chord in the key:
TRIADS
SEVENTHS
Selected notes
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Matches
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Scales that contain these notes
Notes you’re playing
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Tap notes on the fretboard above. The list on the right ranks every scale that contains them — “exact” means the scale is exactly your notes, otherwise it shows how many of the scale’s notes you’ve played.
Possible scales — best fit first
Tap one to load it on the neck
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Tap any fret to hear it · in Degrees mode the dots are color-coded by interval so you read shapes relative to the root · tap a chord-in-key to spotlight only its notes · Identifier names whatever you tap in any tuning.