Create a composition using the letter notation of the specified musical motif and the provided melodic theme.
X:1
L:1/4
M:4/4
K:D
['F G']  
X:1
L:1/4
M:4/4
K:D
 D3/2 E/ F G | A F B2 | A3/2 A/ B c | d2 D z | D3/2 E/ F G | A F d2 | A3/2 A/ ^G B | B2 A z | 
 B A G A | B3/2 A/ G z | A G F G | A3/2 G/ F z | D3/2 F/ A d | d2 B z | A A B G | E2 D z |]  