Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/4
Q:3/4=80
M:6/4
K:D
['d d']  
X:1
L:1/4
Q:3/4=80
M:6/4
K:D
 f d d d c/d/ A | d d c/d/ e2 A | f d f f e/f/ d | f g f/g/ a3 | e e e c B/c/ A | f e/f/ d g2 a | 
 b a g a3/2 g/f/e/ | f e d/e/ d3 :|  