Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
Q:1/2=104
M:2/2
K:D
['Td2 Ad', "d'afa gbeg"]  
X:1
L:1/8
Q:1/2=104
M:2/2
K:D
 f | Td2 Ad BdAd | GdFd E(ee)f | Td2 Ad Bbag | faeg f(dd) :| a/b/4c'/4 | d'afa gbeg | 
 fadf e(AA) a/b/4c'/4 | d'afa gbeg | faeg fdda/b/4c'/4 | d'afa gbeg | fadf eAAa | Tb>abc' d'bag | 
 faeg f(dd) |]  