Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
M:4/4
K:F
['FGAc fgag', 'afge fcdf'  
X:1
L:1/8
M:4/4
K:F
 FGAc fgag | fdcA GFDG | FGAc fgag | fcde f2 f :: g | afge fcdf | dfAf GFDg | afge fcdf | 
 cAde f2 f :|  