Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:4/4
K:D
['', 'd2 fd', '', 'edcB A2']  
X:1
L:1/8
M:4/4
K:D
 A |: d2 fd gdfd | dfed cdec | d2 fd gdfd | gfge cABc | d2 fd gdfd | dfed cdec | d2 fd g3 e | 
 cBcA d3 :| f |: edcB A2 (3cBA | eAfA eAfA | edcB A2 ce | fgfe d3 :|  