Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:3/4
K:Amin
['A2 AG']  
X:1
L:1/8
M:3/4
K:Amin
 AG | E2 A2 AG | A4 Bc | de dc BA | G2 A2 B2 | c3 d ef | g2 e2 ed | c2 A2 AG | A4 |]  