Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:4/4
K:C
['BEA |[M:2/2][K:D]SOSOO .!fermata!PMTuCOMfddf edBc d2 ef g2', 'afdf afdf g2 g2']  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:2/2][K:D]SOSOO .!fermata!PMTuCOMfddf edBc | d2 ef g2 ag | fddf edBc | dBAF E2 D2 :| 
 faab afdf | afdf g2 g2 | faab afdf | gfed B2 A2 | faab afdf | afdf g2 g2 | fa a2 fa a2 | 
 gfed B2 A2 |]  