Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/4
M:4/4
K:D
['A F']  
X:1
L:1/4
M:4/4
K:D
 A F A F | A F D3/2 D/ | d3/2 d/ B d | A3 A | d3/2 d/ B d | B A F D/D/ | F3/2 F/ E A | D4 |]  