Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
Q:3/8=110
M:6/8
K:G
['g3 d3 BdB GAB', 'G3 c2 A ABc d2 B Bcd'  
X:1
L:1/8
Q:3/8=110
M:6/8
K:G
 g3 d3 | BdB GAB | c2 A B2 G | FAF D2 f | g3 d3 | BdB GAB | E2 A FEF | G3 G3 :: c2 A ABc | 
 d2 B Bcd | e2 c A2 G | FAF D3 | cBA ABc | dcB Bcd | ecA FDF | G3 G3 :|  