Backing Tracks - Pop - 70's - From 130 to 300 BPM - Multiple scales for Bass - 14 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