Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:4/4
K:C
['cd ecAE GEAc', 'g4 g^fga gfed cdcB c4 g3 a']  
X:1
L:1/8
M:4/4
K:C
|: cd | ecAE GEAc | GEAc G2 cd | ecAE GEAc |1 GEAB c2 :|2 GEAB c4 |: g3 a g2 e2 | egae g4 | 
 g^fga gfed | cdcB c4 | g3 a g2 e2 | egae g4 | c'2 (3eae gfed | c2 dB c4 :|  