Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/8
M:3/4
K:Amin
['c4 B2']  
X:1
L:1/8
M:3/4
K:Amin
 AB | c4 B2 | A2 E2 A>B | c4 B2 | A4 GA | c4 A2 | G2 DEGA | c3 dBA | G4 A>B | c4 B2 | A2 E2 A>B | 
 c4 B2 | A4 E2 | c2 cdeg | a4 g2 | edegaB | A4 ||  