Develop musical compositions that maintain the outlined structure and integrate the provided motif
X:1
L:1/8
Q:3/8=120
M:6/8
K:C
['cBc GEG', 'c3 gea gfe dec BAG F2 A'  
X:1
L:1/8
Q:3/8=120
M:6/8
K:C
"_key sig. G in MS" cBc GEG | cec dfd | cBc GEG | ced"^cr in MS" c3 :: gea gfe | dec BAG | 
 F2 A E2 G | DEF G3 :|  