Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
M:2/4
K:D
['FA AB/c/ de', 'd2 fa d>e fa af gb e>f'  
X:1
L:1/8
M:2/4
K:D
 FA AB/c/ | de d>c | BG B/c/d | e>d ef | FA AB/c/ | de f>e | dB Af | e2 d2 :| fa d>e | fa af | 
 gb e>f | gb ba | fa/f/ ef/e/ | de f>e | dB Af | e2 d2 :|  