Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:4/4
K:D
['F2 AF BFAF']  
X:1
L:1/8
M:4/4
K:D
 D |"D" F2 AF BFAF | F2 AF"A" EFDE |"D" F2 AF BFAF |"Em" GEFD"A7" EDB,D |"D" F2 AF BFAF | 
 F2 AF"A" EFDE |"D" FAAF BFAB |"A7" ABde"D" fdd |] A |"D" dcdB ADFA | dcde"G" fgfe | 
"D" d2 dB AFDF |"Em" GEFD"A7" EDB,A |"D" dcdB ADFA | dcde"G" fgfe |"D" d2 dB AFDF | 
"Em" GEFD"A7" EDB, |]  