Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:6/8
K:C
['G BAG', 'd2 G BAG']  
X:1
L:1/8
M:6/8
K:C
 G | c2 d e2 d | cBc A3 | f2 G BAG | d2 G BAG | c2 d e2 d | cBc A3 | f2 G BAG | c3 c2 :| G | 
 c2 d e2 g | age g2 e | d2 G BAG | d2 G BAG | c2 d e2 g | age g2 e | d2 G BAG | c3 c2 :|  