Bb: 24 Scales at the Piano Seat

One root, every type. Pick the one that fits the chord you are on.

Every scale type this site maps, rooted on Bb and laid out at this seat. The modes of the major scale do most of the work over most of the repertoire; the rest are here for the bar where a dominant refuses to behave.

The right hand takes the line and the left keeps stating the chord under it, which makes a scale at this seat a two-handed problem: the notes have to work against a voicing you are choosing at the same time.