Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:6/8
K:Amix
['ABd e2 A dBA', 'A<Aa aga']  
X:1
L:1/8
M:6/8
K:Amix
 e | ABd e2 A | dBA A<AB | GAB g2 e | ded BGB | ABd e2 A | dBA A<Aa | geg dBd | e2 A A<A :: B | 
 A<Aa aga | ecA A<AB | GAB g2 e | ded BGB |1 A<Aa aga | ecA A<AB | G<Gg dBd | e2 A A<A :|2 
 A<Aa aga | ede g2 a | geg dBd | e2 A A<A ||  