Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:2/4
K:D
['D F2 A d3 f e>d', 'F>A FA'  
X:1
L:1/8
M:2/4
K:D
 D F2 A | d3 f | e>d cB | A/B/A/G/ FE | D F2 A | d3 f | e>d cB | A4 :: F>A FA | G>B GB | F>A FA | 
 E4 | D>F Ad | B3 f | e>d ce | d4 :|  