Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:2/2
K:D
['', 'd2 fd']  
X:1
L:1/8
M:2/2
K:D
 Bc |: d2 fd BAFB | ADED FAAB | d2 fd BA F2 | ABdf edBc | d2 fd BAFB | ADED FAAB | d2 fd BAFA | 
 ABdf ee d2 | faag fedf | g3 a bgeg | faaf fedB | ABdf ee d2 | fa a2 fedf | g3 a bgeg | 
 f3 e d2 dB | ABdf edBc :|  