Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/8
M:2/2
K:Bmin
['B2 B2 dBBA BA B2 dBAF B2', 'f2 af']  
X:1
L:1/8
M:2/2
K:Bmin
|: B2 B2 dBBA | BA B2 dBAF | B2 dB ABde | faef dBAF :| D2 ag fede | f2 af f2 af | f^gag fede | 
 faef dBAF |]  