Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/16
M:2/4
K:D
['F3 A']  
X:1
L:1/16
M:2/4
K:D
 F3 A | B4 A3 D | F4 F3 A | B4 A3 F | F E3 F3 A | B4 A3 D | F4 F3 A | B3 c d3 B | A F3 F3 A | 
 B2>c2 d3 B | A2<F2 f3 e | d2>B2 A3 F | F E3 F3 A | B2>c2 d3 B | A2<F2 f3 e | d2>B2 A3 F | 
 F E3 F3 A | B4 A3 D | F4 F3 A | B4 A3 F | F E3 F3 A | B4 A3 D | F4 F3 A | B3 c (ed) (cB) | A F3 ||  