Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:4/4
K:Gmin
['GA B2 (AB) G2 (dc) (Bc)(AB) G2', '[B,DG]2 d2 (g^fg)a (gfg)a b2 B4 ga']  
X:1
L:1/8
M:4/4
K:Gmin
 GA | B2 (AB) G2 (dc) | (Bc)(AB) G2 d2 | e3 d c2 (fe) | d2 (cd) B4 | B2 (gB) A2 (fA) | 
 GAGF D2 (dc) | (BABG) DG^FA | [B,DG]2 [B,DG]2 [B,DG]2 :: d2 | (g^fg)a (gfg)a | b2 B4 ga | 
 bagf edcB | ABcA F4 | B2 B2 c2 c2 | d2 d2 g4 | f2 B2 e4 | d2 G2 c4 | BcBA GABG | ^FGAF | D2 dc | 
 (TBABG) DG^FA | [B,DG]2 [B,DG]2 [B,DG]2 |]  