Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:4/4
K:C
['G EB c>A BA B>d c/B/A/G/ EB']  
X:1
L:1/8
M:4/4
K:C
 G | EB c>A BA B>d c/B/A/G/ | EB c>B cB A2 A :|  