Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/8
M:4/4
K:Gmin
['(AG) F2']  
X:1
L:1/8
M:4/4
K:Gmin
 D2 | G3 A B2 (cA) | G2 (FD) F3 c | (d=e) f2 (ed) c2 | A6 c2 | (d=e) (fd) (cB) A2 | 
 (cB) (AG) F2 D2 | B2 (GB) (AG) F2 | G6 z2 |]  