Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:6/8
K:D
['dfe dBB']  
X:1
L:1/8
M:6/8
K:D
 A/G/ |"D" FAA dAA |"D" BAA dAG |"D" FAA dfe |"G" dBB BAG |"D" FAA dAA |"G" BA"D"A def | 
"G"{a} gfe"D" dfe |"Bm" dBB B2 :: g |"Bm" fbb"D" faa |"D" fed deg |"Bm" fbb"D" faa | 
"D" fed"A" e2 g |"Bm" fbb"D" faa |"D" fed def |"G" gfe"D" dfe |"Bm" dBB B2 :|  