Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['de fBBA FEFG', 'd2 fd Adfa bfaf']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
 de | fBBA FEFG | A2 FB ABde | fBBA FEFA | BdcA B2 de | fBBA FEFG | ABFB AFDe | fbaf efdf | 
 edBA B2 :| Ac | d2 fd Adfa | bfaf efdB | d2 fd Adfa | bfaf e2 ef | d2 fd Adfa | bfaf efdf | 
 fBBA FEFG | ABBA B2 :|  