Create music using the specified musical structure and the provided theme.
X:1
L:1/8
Q:3/8=90
M:6/8
K:C
['G GEG ceg gfe d2 f', 'C E/F/G'  
X:1
L:1/8
Q:3/8=90
M:6/8
K:C
 G | GEG ceg | gfe d2 f | egf edc | Bdd d2 G | GEG ceg | gfe d2 f | egc dfB | ccc c2 :: 
"_rest added" z | EGc cBA | AGF E2 C | E/F/G C E/F/G C | B,DD D2 D | EGc cBA | AGF E2 C | 
 E/F/G E FDB, | CCC C2 :|  