Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:2/4
K:D
['df fe/d/ ce/f/', 'bb bf/g/ aa']  
X:1
L:1/8
M:2/4
K:D
 A |"D" df fe/d/ | d2"A7" ce/f/ | gg gf/e/ |"D" a>f dA ||"D" df fe/d/ | d2"A7" ce/f/ | 
 gb/a/ ge/c/ |"D" d3 :: g/a/ |"G" bb bf/g/ |"D" aa ae/f/ |"A7" gg gf/e/ |"D" a>f dg/a/ || 
"G" bb bf/g/ |"D" aa ag/f/ |"A7" eb/a/ ge/c/ |"D" d3 :|  