Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:2/4
K:D
['A>B AF', 'ge fd cB']  
X:1
L:1/8
M:2/4
K:D
 A>B AF | DF Ad | A>B AF | GF EF/E/ | DE FG | AB cd | e>d ce |1 d2 dB :|2 d2 de || fd ge | fd cB | 
 Ad cd | fe ed/e/ | fd ge | fd cB | Ag ec | d2 d>e | fa ge | fd cB | Ad cd | fe ed/e/ | fd ge | 
 fd cB | Ag ec | d2 dB ||  