Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
Q:1/8=128
M:4/4
K:D
['d2 c>d']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:D
|: A | d2 c>d B>d A2 | d2 f>a d'2 c'>d' | d2 c>d B>d A2 | e<e f>d e2 a2 | d2 c>d B>c A2 | 
 d<d f>a d'2 a2 | b>a b>c' d'>a f>d | e>d e>f d3 a | f>g a>f d>e f>d | B<e e>c dc BA | 
 d>e f>g f>g a>b | a<f e>d e2 a>g | f>g a>f d>e f>d | B<e e>c dc BA | de fg ab c'd' | a<f e>f d3 :|  