Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:4/4
K:Edor
['', 'Ad BEEE BABc', 'Beed efed BABc']  
X:1
L:1/8
M:4/4
K:Edor
 dc |: B2 Ad BEEE | BABc dedB | A^GAB ADDE | (3FED FA d2 cd | BB Ad BEEE | BABc dcde | fdde dcBA | 
 (3Bcd AF EFGA :: Beed efed | BABc dedB | A^GAB ADDE | (3FED FA d2 cd | Beed efed | BABc dcde | 
 fdde dcBA | (3Bcd AF EFGA :|  