Craft a musical work based on the specified structure and given theme.
X:1
L:1/8
M:2/4
K:D
['dB AF A>B AB d2 f/e/d/e/', 'd d fe fg a2 gf eb'  
X:1
L:1/8
M:2/4
K:D
 f/e/ | dB AF | A>B AB | d2 f/e/d/e/ | fe ef/e/ | dB AF | A>B AB | d2 f/e/d/e/ | fd d :| d | 
 fe fg | a2 gf | eb ba | be ef/e/ | dB AF | A>B AB | d2 f/e/d/e/ | fd d :|  