Type chords into the grid, add slash chords and two chords in a bar, drag in progressions from the Library, and move chords around.
Tutorials
Short videos that show Tonal Atlas in action. Start with the first two to write your first progression and shape how it sounds.
See every note in the Phraser, change octave, inversion and voicing, then drag your song out as MIDI or audio.
Find the next chord with the Atlas Tree: suggestions that branch out from the chord you are on.
Travel between chords and keys on a map, and discover unexpected harmonic connections.