FR3TLAB
scales · chords · arpeggios · progressions · identifier — any tuning
{{ headTitle }}
Mode
Root
Scale / Mode
Chord Quality
Key
Selection
Tuning
Strings
{{ stringCount }}
Per-string tuning (low → high)
{{ ed.tag }}
Labels
Handed
Capo
{{ capoLabel }}
Frets shown
from
{{ fretFrom }}
to
{{ fretTo }}
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.
Focusing {{ focusName }} only this chord's notes (within the key) are lit
{{ h.label }}
{{ cell.label }}
{{ h.dotLabel }}
{{ scaleTitle }}
{{ scaleFormula }}
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.
{{ chordTitle }}
{{ chordFormula }}
Playable shapes in this tuning
{{ v.posLabel }}
{{ fl.label }}
{{ m.label }}
{{ gc.label }}
No compact shape found for this chord in the current tuning and fret range. Try widening the fret range or a different tuning.
{{ arpTitle }}
{{ chordFormula }}
Sweep / arpeggio shapes
Each shape is one note per string — tap ▶ to hear it swept ascending then descending.
{{ v.posLabel }}
{{ fl.label }}
{{ m.label }}
{{ gc.label }}
No compact sweep shape found in the current tuning/fret range. Widen the fret range or change tuning.
{{ progTitle }} progressions
BPM
{{ bpm }}
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
{{ identSel }}
{{ identSpelling }}
Matches
{{ identHint }}
Scales that contain these notes
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.
Fr3tLab · A free passion project by Jesse Moraga · Fresno, CA · [email protected]