Backing Tracks - Jazz - Before 1950 - In the key of B♭m for Piano - 1 Instrumental Versions Available

Major scales
D♭ E♭ F♯ A♭ B♭
C D E F G A B

Minor scales
C♯m D♯m F♯m G♯m B♭m
Cm Dm Em Fm Gm Am Bm