Construct a piece of music using the designated motif as the basis, while ensuring the required form is followed.
X:1
L:1/8
Q:1/8=160
M:4/4
K:G
['G2 G>G B<d', 'a>g f<d'  
X:1
L:1/8
Q:1/8=160
M:4/4
K:G
 G2 G>G B<d d>B | c>AB>G A>G F<D | G2 G>G B<d d2 | e<g f<a g2 g2 :| g>a b<g a>g f<d | 
 e>fg>e d<B B<G | g>ab>g a>g f<d | e<g f<a g2 g2 | g>a b<g a>g f<d | e>fg>e d<B B<G | 
 G2 G>G B<d d2 | e<g f<a g2 g2 :|  