Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
M:6/8
K:D
['dcd efd b2 z a3 f3', 'z gfg bag fef agf ede gfe']  
X:1
L:1/8
M:6/8
K:D
 vAAB"^4"{e} dcd | efd b2 z | a3 f3 | efd BdB | AAB"^4"{e} dcd | efd b2 z | a3 f3 | edd d2 z :: 
"^3"{va} gfg bag | fef agf | ede gfe | fdB BdB | AAB"^4"{e} dcd | efd b2 z | a3 f3 | edd d2 z :|  