Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:4/4
K:Amin
['A2 AB c2 cd', 'A2 ag eaaa a2 ga baga bag']  
X:1
L:1/8
M:4/4
K:Amin
 AG | EA A^G A2 AB | c2 cd cAGE | G2 GA G2 GA | BAGE GEDG | EAAB A2 AB | c2 cd c2 d2 | 
 eg ^fa gedB | BAAA A2 || ag | eaaa a2 ga | baga bag c | Bd ga g2 ga | bage gedg | eaab a3 b | 
 c'bag bagd | eg ^fa gedB | BAAA A2 |]  