Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
['B,BdB FAcA Bdfd egec dfdB', 'dfbf dfbf']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
 B,DFD B,BdB | FAcA Bdfd | egec dfdB | cBAG FEDC | B,FDF B,BdB | FAcA Bdfd | egec dfdB | 
 GecA B2 z2 || dfbf dfbf | dfbf edcB | dfbf dfbf | edcB A2 Bc | dfbf dfbf | edcB AcAF | egec dfdB | 
 GecA B2 B2 :|  