Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/4
M:4/4
K:D
['F F']  
X:1
L:1/4
M:4/4
K:D
!mf! v!0!A !2!F F2 | !3!G !1!E E2 | !0!D !1!E !2!F !3!G | !0!A A A2 | A F F F | G E E E | D F A A | 
 F F F2 |!p! E E E E | E F G2 | F F F F | F G A2 |!mf! A F F F | G E E E | D F A A | F F F2 |]  