Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:6/8
K:Amix
['AFE A3 Bce c3 Bce cBA', 'e3 cBA Bce c3 Bce cBA']  
X:1
L:1/8
M:6/8
K:Amix
|: AFE A3 | Bce c3 | Bce cBA | BAF AFE | AFE A3 | Bce c3 | Bce cBA | BAG A3 :: e3 cBA | Bce c3 | 
 Bce cBA | BAF AFE | e3 cBA | Bce c3 | Bce cBA | BAG A3 :|  