Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
M:6/8
K:A
['ecA AGA', 'eca eca', 'GF/E/ Ac/A/{A} GF/E/', 'ag/f/ e2 c/d/e/f/{f} ed/c/ B/A/B/c/'  
X:1
L:1/8
M:6/8
K:A
 (c/d/) | ecA AGA | ecA AGA | FdB Ged | cBA BGE | ecA AGA | ecA AGA | FdB Ged | cAA A2 :: 
 (A/4B/4c/4d/4) | eca eca | eca edc | fdB BbB | BB,B B2 (A/4B/4c/4d/4) | eca eca | eca ecA | 
 EAc eca | B>AB A2 ::[M:2/4][K:A] Ac/A/{A} GF/E/ | Ac/A/{A} GF/E/ | ee{d} cB/A/ | BB{A} GF/E/ | 
 Ac/A/{A} GF/E/ | Ac/A/{A} GF/E/ | A/B/c/d/ e/f/g/a/ | e/c/B/c/ A2 :: c/d/e/f/ ef/g/ | 
{b} ag/f/ e2 | c/d/e/f/{f} ed/c/ | B/A/B/c/ BE | c/d/e/f/ ef/g/ |{b} ag/f/ e2 | c/d/e/f/{f} ed/c/ | 
 B/A/B/c/ A2 :|  