Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:2/2
K:G
['(GA) B2 BA Bc d2 efed ef', 'G2 d2 gfed edBd gfed e2 (ef)', 'ed)Bd gfed e2 (ef) gbaf gfed egfa']  
X:1
L:1/8
M:2/2
K:G
 (GA) | B2 BA Bc d2 | efed ef g2 | BcBA GAB(G | AG)EF G2 :| d2 | gfed edBd | gfed e2 (ef) | 
{a} g(fed) edBA | BGEF G2 (ef) ||{a} gfe(d ed)Bd | gfed e2 (ef) | gbaf gfed | egfa g2 |]  