Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:6/8
K:Amin
['ege deg edB', 'edc Bdg dBG c3 edc deg a2']  
X:1
L:1/8
M:6/8
K:Amin
|: ABA a2 (a |{b} a)ge g3 | c3 edc | Bdg dBG | (ABA) a3 | a(ge) g3 |1 ege deg | edB A3 :|2 
 ege deg | edB A2 B |: c3 cec | d3 ded | c3 edc | Bdg dBG | c3 edc | deg a2 (a |{b} a)ge deg |1 
 edB A2 B :|2 edB A3 ||  