Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:6/8
K:D
['DFA dcd AFA BGE DFA def gfg', 'B2 d']  
X:1
L:1/8
M:6/8
K:D
|: DFA dcd | AFA BGE | DFA def | gfg e3 | DF/G/A d3 | AF/G/A G2 E | afd efg | ABc d3 :: fef d2 f | 
 B2 d A3 | FGA Bcd | fed e2 a/g/ | fgf efe | dfd B2 d | FF/G/A Bed | cBc d3 :|  