Compose a piece of music that integrates the given motif and follows the specified musical form.
X:1
L:1/4
Q:1/2=90
M:2/2
K:D
['g f']  
X:1
L:1/4
Q:1/2=90
M:2/2
K:D
 d e/ f d | g f e d | f3/2 g/ a f | b a g f | a3/2 a/ a a | b a g f | g g g g | a g f e | 
 a3/2 a/ b3/2 b/ | a A d2 | b3/2 b/ a f | g e d2 |]  