Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
M:2/4
K:G
['d2 ABcB dB G2 AGFA']  
X:1
L:1/8
M:2/4
K:G
 GBdd | GB d2 | ceee | ed d2 | ABcB | dB G2 | AGFA | GB d2 | ABcB | dB G2 | AGFA | AG G2 |]  