Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:9/8
K:Dmix
['EFE (G2 A)', 'gag fgf e3 EFE G2 A BGE']  
X:1
L:1/8
M:9/8
K:Dmix
 EFE (G2 A) B3 | (E2 F) G2 (B A)FD | EFE (G2 A) Bcd | DFA (dc)(B A)FD | EFE (G2 A) B3 | 
 EFE G2 (B A)FD | EFE (G2 A) Bcd | DFA (dc)(B A)FD || | gag fgf e3 | EFE G2 A BGE | gbg faf d3 | 
 DFA dcB AFD | gag fgf e3 | EFE G2 A BGE | gbg afd g3 | DFA dcB AFD |]  