Create a musical composition incorporating the given motif following the designated alphabetical pattern.
X:1
L:1/8
M:6/8
K:Bb
['BdB FDF', 'gfe dcB']  
X:1
L:1/8
M:6/8
K:Bb
 F | BdB FDF | BdB FDF | BFB dBd | fgf edc | BdB FDF | BdB FDF | BFB dBd | cBc B2 :: d | 
 (db.b) (ca.a) | (Bg.g) (Af.f) | gfe dcB | AcB AGF | Bbb caa | Bgg Aff | gfe dcB | FGA B2 :|  