Each profile has its own chord pool and metronome. Pick a key for the builder, add chords — each
chord keeps the tonality from when you added it (later key changes do not alter the pool). Mix
chords from different keys in one profile.
Profile
Builder (key for new chords only)
Scale for new chords: C — D — E — F — G — A — B
Add diatonic chords
Each chord is saved with the key/mode shown above. Change key and add more — existing pool
chords stay the same.