Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
Q:1/2=104
M:4/4
K:Amix
['a2 ae', 'A d ceeg fddf ecce fBBd ceea']  
X:1
L:1/8
Q:1/2=104
M:4/4
K:Amix
 d | ceef a2 ae | f2 fe a2 ae | ceef a2 ae | faec TB2 A :| d | ceeg fddf | ecce fBBd | ceea fddf | 
 ecac B2 A :|  