Pick any mode → see the parent scale you already know, shift the emphasis. Click any key or fret dot to hear it.
Guitar tuning
Scale family
Mode / scale
Root note (the emphasis)
Melody sketchpad — piano roll: paint notes, loop it, morph it between modes
FL-style roll: click a cell to add a note, click again to remove, drag to paint. Each cell is a 16th note; stack cells in a column for chords. Blue rows are in the current scale, the red-edged row is the root. ● Rec step-records clicks from the piano/fretboard into the grid. Loop it with ▶ Melody in the bottom bar; Morph replays the same grid in a parallel mode.
Rotations — same notes, shifted emphasis (click a row to switch)
Piano — click keys to hear them
Root (emphasis)Scale note
Guitar — full fretboard map — click dots to hear them
Root (emphasis)Scale note
Positions
Shape movement — how a shape slides when the root changes
Move→
Grey = the shape at the “from” root. Colored = the exact same shape at the “to” root. The pattern never changes — it only slides along the neck by the interval between the two roots. (Same fingering, new position.)
Diagonal run — play the scale diagonally across the neck
Backing track link
Backing-track titles usually announce the key and BPM — “Load” tries to read the video title automatically, or paste it above. For detection from the actual audio, upload the file below.
Key of the song
Or set manually:
Modes that work over this key — and what they feel like
Chords in this key
Click a chord to see it on the piano and hear it.
Progression builder
Spice — borrowed chords & secondary dominants
Arpeggio targeting — chord tones on the fretboard
While the progression plays, this board follows the current chord: bright dots are its chord tones (red = chord root), faded dots are the rest of the key. Land on bright dots on strong beats and your lines will always sound intentional.