Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:2/2
K:G
['ga gded BcdB', 'G,B,DF G2 Ac BGAc BAGB gedc BGAG']  
X:1
L:1/8
M:2/2
K:G
 (e | g2) ga gded | BcdB GBde | gfga ge d2 | e3 d e2 ee | g2 ga gded | BcdB gedc | 
 BGAG DEGB A G2 A | G6 z :: G,B,DF G2 Ac | BGAc BAGB | gedc BGAG | EGDC B,2 DD | G,B,DF G2 Ac | 
 BGAc BAGB | gedc BGAG | EFGA B G3 :|  