Create a composition using the letter notation of the specified musical motif and the provided melodic theme.
X:1
L:1/8
Q:1/2=90
M:2/2
K:C
['GEGc c2 c2', 'eg g2 fa a2']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:C
 c2 | GEGc c2 c2 | efde cA A2 | GEGc c2 c2 | efde c2 :: e2 | eg g2 fa a2 | gede cA A2 | 
 eg g2 fa a2 | c'bag a2 a2 | eg g2 fa a2 | gede BA A2 | GEGc c2 c2 | efde c2 :|  