Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:2/4
K:G
['', 'DG GA B2 A>G BA A>A', 'Bd DG GA B2 A>G GE ED', '', 'eg d2 c>B BA A>A BA Bd', 'eg d2 c>B AG G>A BG |1']  
X:1
L:1/8
M:2/4
K:G
"^A" |: DG GA | B2 A>G | BA A>A | BA Bd || DG GA | B2 A>G | GE ED | GE ED :|"^B" |: ed eg | 
 d2 c>B | BA A>A | BA Bd || ed eg | d2 c>B | AG G>A | BG |1 Gd :|2 GE |]  