Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
Q:3/8=110
M:6/8
K:D
['d2 d def gfg efg', 'D2 a aba agf gec Ace gag']  
X:1
L:1/8
Q:3/8=110
M:6/8
K:D
 z | d2 d def | gfg efg | afd gfg | efd cBA | d2 d def | gfg efg | aba gec | d3 D2 :: a | aba agf | 
 gec Ace | gag gfe | fdA FDf | (d/e/f).d (e/f/g).e | (f/g/a).f (g/a/b).g | afd gec | d3 D2 :|  