Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/16
M:2/4
K:D
['d2 |!p! A2F2F2 (3(FED)', 'a2f2f2 (3(fed)', 'AA,B,C DEFG ABcd edcB AGFE FA^GA EAGA']  
X:1
L:1/16
M:2/4
K:D
!f!{c} d2 |!p! A2F2F2 (3(FED) | A2A2A2!f!{c} d2 |!p! A2F2F2 (3(FED) | A2A2A2 z3/2 A/ | 
!f! d2>e2 d2>e2 |!f! [fA]6 (3(fga) | d2(3(fga) d2(3(fga) | d2d2d2 |] !fermata!A2 | 
!p! d2d2d2!f! f2 | (f2A2) z2!p! A2 | e2e2e2!f! g2 | (g2A2) z2!p! A2 | A2 f2f2f2 | f2"^>" g4 fe | 
!f! dAfA eAgA | fAaf"^D.C." d2 |]!f!{d} d'2 |!p! a2f2f2 (3(fed) | a2f2f2!f!{d} d'2 | 
!p! a2f2f2 (3(fed) | a2A2 AA,B,C | DEFG ABcd | edcB AGFE | FA^GA EAGA | DdAF DEF"^D.C."G |]  