Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:6/8
K:D
['fdf ecA', 'd2 F/G/ ABA AFA (B/c/d)(B A)FA Bcd']  
X:1
L:1/8
M:6/8
K:D
 A | fdf ecA | (B/c/d)(B A)FD | EFG ABc | def ecA | fdf ecA | (B/c/d)B AFD | EFG Agf | edc d2 :: 
 F/G/ | ABA AFA | (B/c/d)(B A)FA | Bcd efg | Bge cBA | fdf ecA | (B/c/d)(B A)FE | EFG Agf | 
 edc d2 :|  