Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
M:4/4
K:D
['F3 A FEDE F A3 AFEF d2', 'dfaf gfe z'  
X:1
L:1/8
M:4/4
K:D
|: F3 A FEDE | F A3 AFEF | d2 eg fdef | dBAF BE E z | F3 A FEDE | F A3 AFEF | d2 eg fdef | 
 dBAG FDD z :| d2 AG FDFA | dfaf gfe z | fAdf eAce | dfed c A3 | BDGB ADFA | dfaf gfe z | 
 (3Bcd ce dBAF | GEAG F D2 z :|  