Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
Q:3/8=120
M:6/8
K:D
['d2 D', 'd2 A dfa afd cea ecA ded']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:D
 (f/e/) | d2 D FED | EFE cBc | d2 D F/G/AF | A3 d2 :| A | dfa afd | cea ecA | ded fed | f3 a2 b | 
 afa geg | fdf ece | d2 D FAF | A3 d2 :|  