Develop a musical piece using the given theme and incorporating the letter-based structure provided.
X:1
L:1/8
M:6/8
K:C
['EGc cBA Bdf fga gec', 'g fd/c/B/A/ Gdf eG/F/E/D/ CGc |{c} BA^c', 'a c2 e A2 c EAc edc']  
X:1
L:1/8
M:6/8
K:C
 G/F/ |S EGc cBA | Bdf fga | gec Adc | BcA GAF | EGc cBA | Bdf fga | gec AdB | [Fd]2 [Ec]2 || g | 
 fd/c/B/A/ Gdf | eG/F/E/D/ CGc |{c} BA^c dfa | [Ec]3 [DB]2 G | fef def | e/g/^a/b/c'/b/ e'be | 
 dag fed | [Fd]3 [Ec]2 || e | a2 c' e2 a | c2 e A2 c | EAc edc | c3 B2 e | Tf3 T^g3 | a3 aec | 
 Bfd c2 B | A2 G FEDS ||  