Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:6/8
K:F
['c cdc fed cdB A2', 'f2 f/g/ aff faf gec c2 B']  
X:1
L:1/8
M:6/8
K:F
 c | cdc fed | cdB A2 f | fgf agf | egg g2 c | cdc fed | cdB A2 a | aba gfe | f3 f2 :: f/g/ | 
 aff faf | gec c2 B | Acf Gce | TB3 A2 A | BdG ceA | dfB egc | agf cde | f3 f2 :|  