Develop a harmonic creation that incorporates the given motif and adheres to the specified alphabetical order.
X:1
L:1/16
M:2/4
K:Bb
['g f']  
X:1
L:1/16
M:2/4
K:Bb
 b2 d'2 c'2 d'2 | b2 g2 f4 | f2 z2 d'2 f'2 | c' d' b g f4 | g f g b c' d' b z | g f g b f4 | 
 b g f b b2 d2 | f3 d f g d c | B8 |]  