Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
M:2/2
K:Dmix
['D2 FD ADFD E2 cE dEcE D2', 'fd d2 fgaf ec c2 efge', 'fgag fd d2', 'f2 df']  
X:1
L:1/8
M:2/2
K:Dmix
 D2 FD ADFD | E2 cE dEcE | D2 FA dfed | cAGE EDCE | D2 FD ADFD | E2 cE dEcE | D2 FA dfed | 
 cAGE ED D || e | fd d2 fgaf | ec c2 efge | fdd^c dfed | cAGE FD D2 | fd d2 fgaf | ec c2 efge | 
 dfeg fagb | afge fdd || e | fgag fd d2 | efgf ec c2 | fgag fded | cAGE ED D2 | fgag fd d2 | 
 ef g2 ed^ce | dfeg fagb | afge fdde || f2 df f2 df | e2 ^ce e2 ce | f2 df fded | cAGE ED D2 | 
 f2 df dfdf | e2 ^ce cece | dfeg fagb | afge fd d2 ||  