Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:6/8
K:G
['DFA dBG AFD GFG A2', 'd2 B cBA BAG AFD GFG A2']  
X:1
L:1/8
M:6/8
K:G
 ABA DFA | dBG AFD | GFG A2 B | cBc AFG | A3 DFA | dBG AFD | GFG A2 d | cAF G3 :: d2 B cBA | 
 BAG AFD | GFG A2 B | cBc ABc | d2 B cBA | BAG AFD | GFG A2 d | cAF G3 :|  