To play the descending one octave Bb Major scale, reverse the sequence thus: 3, 1, 2, 3, 4, 1, 2, 3.

Should you wish to play more than one octave, repeat the sequence from the last finger ‘3’, thus: 3, 2, 1, 4, 3, 2, 1, 3, 2, 1, 4, 3, 2, 1, 3… The ascending one octave Bb Major scale is most easily played by the left hand with the fingering 3, 2, 1, 4, 3, 2, 1, 3 This fingering is different from scales on white keys because of the position of the black keys making the standard 1,2,3,1,2,3,4 fingering cumbersome. Should you be playing more than one octave, repeat the sequence from finger ‘4’, thus: 4, 3, 2, 1, 3, 2, 1, 4, 3, 2, 1, 3, 2, 1, 4, 3… and always finishing on a 2 for the final note. To play the descending one octave Bb Major scale, reverse the sequence thus: 4, 3, 2, 1, 3, 2, 1, 2 Should you wish to play more than one octave, simply continue with a ‘1’, continuing the sequence from the first ‘1’ in the sequence, thus: 2, 1, 2, 3, 1, 2, 3, 4, 1, 2, 3, 1, 2, 3, 4… The ascending one octave Bb Major scale is most easily played by the right hand with the fingering 2, 1, 2, 3, 1, 2, 3, 4

Left and right hands fingering for Bb Major scale Right Hand Playing

Major scale b flat