Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/16
Q:1/4=80
M:2/4
K:G
['[Gd]2[Gd]2 [GB]2[GB]2 D2EF{/F} G2[G,G]2 edcB cBAG', '[G,G]2[G,G]2 F[FA][FA][FA] G[GB][GB][GB] A[Gc][Gc][Gc] [Gc]2B2 g2dc B2AG'  
X:1
L:1/16
Q:1/4=80
M:2/4
K:G
{/B} [Gd]2[Gd]2 [GB]2[GB]2 | D2EF{/F} G2[G,G]2 | edcB cBAG | D2EF [G,G]2[G,G]2 :: 
 F[FA][FA][FA] G[GB][GB][GB] | A[Gc][Gc][Gc] [Gc]2B2 | g2dc B2AG | D2EF G4 :|  