Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/4
Q:1/4=120
M:3/4
K:G
['d e']  
X:1
L:1/4
Q:1/4=120
M:3/4
K:G
 d e f | g2 d | e c2 | A3 | A B c | d2 e | (d/c/ A3/2) G/ | G2 A | B2 e | ^c d2 | d2 ^c | d3 | 
 f e f | g2 g | f ^d2 | e3 | e d e | c2 B | c A2 | F2 (E/D/) | G2 A | (B/c/ B/c/) d | c A2 | .G3 |]  