Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
Q:1/8=300
M:9/8
K:G
['g2 f efg dcB e2', 'B2 c dcB dcB e2']  
X:1
L:1/8
Q:1/8=300
M:9/8
K:G
 g2 f efg dcB | e2 A ABG FAd | g2 f efg dcB | e2 c d2 A BAG :| B2 c dcB dcB | e2 A ABg FGA | 
 B2 c dcB dcB | e2 c d2 A BAG :|  