Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:4/4
K:D
['e2 fe', 'df f2']  
X:1
L:1/8
M:4/4
K:D
 ADFD A3 B | ADFD EFGB | ADFD A2 (3Bcd |1 e2 fe dBBd :|2 e2 fe dBAB || df f2 af f2 | df f2 egfe | 
 df f2 af f2 | egfe dBAB | df f2 af f2 | df f2 e2 fg | a3 b afeg | fedc BcdB ||  