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:C
['[M:2/2][K:G] A da AE E2 cE E2', '', 'eg agea ageg agef g2 fg agbg']  
X:1
L:1/8
M:4/4
K:C
[M:2/2][K:G] A da e[Q:1/8=180]"^A dorian" AE E2 cE E2 | GFEF GFED | (3EFG AB cded | cBcd e2 fg | 
 abaf gbge | dBGB ABcd | (3efg ed cABG | AGEG A2 ||"^FINAL" AGEG !fermata!A4 || eg | agea ageg | 
 agef g2 fg | agbg aged | cBcd e2 fg | abaf gbge | dBGB ABcd | (3efg ed cABG | AGEG AdcB"_DC" ||  