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:D
['dcAG FDDE FEFG AB (3=cBA dcAG FDDg', 'fdec (3ddd fd adfd cdeg fddc defg']  
X:1
L:1/8
M:4/4
K:D
 dcAG FDDE | FEFG AB (3=cBA | dcAG FDDg |1 fdec dfec :|2 fdec d2 (3ABc || d2 fd adfd | cdeg fdec | 
 (3ddd fd adfd | cdeg fddc | defg aged | cdef g2 fg | (3agf (3gfe fded | cdeg fddc ||  