Create a composition based on the provided motif while adhering to the necessary musical structure.
X:1
L:1/8
M:4/4
K:G
['B>GD>B, C>EA>B', 'b>ga>f g>ed>B'  
X:1
L:1/8
M:4/4
K:G
 uD>uB, | vG,>vB,uD>uG B>GD>B, | C>EA>B c>BA>c | B>dg>d e>cA>G | (3FGA (3GFE (3DED (3CB,A, | 
 G,>B,D>G B>GD>B, | C>EA>B c>de>f |{a} g>fg>e (3ded (3cBA | G>Bd>B g2 :: (uB>c) | 
 d>g{ag}f>g e>g({ag}f>g) | b>ga>f g>ed>B | (3cde (3ABc (3Bcd G>B | (3AGF (3GFE D2 (B>c) | 
 d>g({ag}f>g) e>g({ag}f>g) |{a} b>ga>f g>ed>B | c>de>f{a} g>fg>e | d>Bc>A G2 :|  