Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:4/4
K:G
['D2 BA BdAd BG G2', 'dgbg ageg gedB']  
X:1
L:1/8
M:4/4
K:G
 B3 G ABGE | D2 BA BdAd | BG G2 (3Bcd eg | gedB eA A2 | GDBG A2 GE | D2 BA BdAd | BG G2 Bdeg | 
 gedc BG G2 || dgbg ageg | gedB GA (3Bcd | a3 b ageB | dgbg ageB | dgbg ageg | gedB GABd | 
 a3 g e2 fa | gedc BG G2 ||"^last bar" gedB G2 G2 ||  