Create a musical composition incorporating the given motif following the designated alphabetical pattern.
X:1
L:1/8
M:6/8
K:G
['B2 B', 'A2 A', 'd2 d']  
X:1
L:1/8
M:6/8
K:G
 B2 B B2 B | ABA G2 G | F2 G A2 F | G2 A B2 G | B2 B BcB | AGF GAB | c2 B A2 G | FEF G3 :: 
 A2 A F2 D | GAB A2 A | ABA FED | GAB AB^c | d2 d ^c2 c | B^cB A2 A | GAG FGF | EFE D2 D :: 
 d2 d d2 d | cBc B2 B | A2 B c2 A | B2 c d2 B | d2 d d2 d | cdc Bcd | e2 d c2 B | AGF G3 :|  