Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:6/8
K:G
['D G3 G2 B AGE', 'c2 A']  
X:1
L:1/8
M:6/8
K:G
|: D | G3 G2 B | AGE GED | G2 G AGE | GED D2 D | G3 G2 B | AGE GAB | c2 A BGE | DED D2 :: B | 
 c2 A BAG | ABA AGE | c2 A BGE | DED D2 B | c2 A BAG | ABA ABc | dcA AGE | GED D2 :|  