Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:6/8
K:Amin
['AEA c3', '', '^cAA A2']  
X:1
L:1/8
M:6/8
K:Amin
 AEA c3 | ege cBA | G3 BGB | d^ce dBG | AEA c3 | egb gec | de=f ede |1 ^cAA A2 E :| ^cAA A2 B |: | 
 cBA ECD | A,3 ABc | B3 GBd | gdB GBd | c3 d3 | egb gec | de=f ede |1 ^cAA A2 B :|2 ^cAA A2 E ||  