Chord Router

Enter chords, then optimize

Chord progression

Key, scale & transposition

Notation keyScale / mode

Transpose progression

To key

Uses the notation key above. Keeps chord qualities, scale/mode and timing. Fingerings are recalculated for the new key.

Numbers use major-scale degrees from the chosen key center (minor tonic = 1m / i). Roman bass labels show the bass degree. Scale exploration is independent.

Progression library Examples and saved progressions

Loop pathTempo BPM

Ideas

Find a foundation. Add movement and color.

Generation settings

Key Scale / mode Style Main chords

Playability

Maximum grip difficulty No barreShared with Practice. Setup and comfort are in Settings.

Maximum chord color Harmonic adventure

Each higher chord color level adds more variety, including all earlier options. Simpler chords stay in the mix.

Connections & structure

Connecting chords Maximum additions Timing Ending Variety

Allowed additions Passing chords Approach dominants Diminished approaches Turnarounds into the loop

Main chords count slots, including repeats. Additions are extra chords, limited by the scale, adventure setting, and playability filters. Each main slot starts as a four-beat bar; fitted additions take its final beats. Approach chords may use sevenths even at a low color setting.

Generate a few candidates, then play and refine the one you like.

Tempo (♩) BPM

Generate ideas or enter chords to begin. Nothing changes in your song until you accept an idea.

Scale positions

Common scales included

Selected chord

Current fingering diagram

Root Chord tone Muted

Chord Shapes

Common shapes first, then difficulty · Estimated scores; lower is easier

Playability filters · apply to shapes and routes Common only No barre Difficulty Minimum fret

Maximum fret and span are in Settings. A minimum above 0 excludes open strings.