Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:3/4
K:D
['DF A2']  
X:1
L:1/8
M:3/4
K:D
 D | DF A2 GE | DF F2 ED | DF A2 GF | F2 E2 z A | AffcdF | Fe e2 z d | cBAGBC | E2 D2 z |]  