Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['A,D D2 A,DFA BFAF EFAB (3dcB (3cBA', 'fdge fdgf edBc (3dcB (3cBA']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
 z | A,D D2 A,DFA | BFAF EFAB | (3dcB (3cBA BdAF | (3GFE (3FED ECDB, |"^5" A,D D2 A,DFA | 
 BFAF EFAB | (3dcB (3cBA BAGF | GFEG FDD :| g |"^9" fd d2 fdge | fdgf edBc | (3dcB (3cBA Bcde | 
 fdgf edeg |"^13" fd d2 fdge | fdgf edBc | (3dcB (3cBA BAGF | GFEG FDDg |"^17" fd d2 fdge | 
 fdgf edBc | (3dcB (3cBA Bcde | fdgf edeg |"^21" fgaf edBc | defd BAFD | A,D D2 A,DFA | 
 BFAF !fermata!D4 ||  