Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
M:3/4
K:D
['d3 B (BA)']  
X:1
L:1/8
M:3/4
K:D
|:"D" D>F F>F F>F |"A7" (FE) G>F"D" DD |"D" D>A A>A A>A |"G" (AG) B>A"A7" F>G |"A7" E2"D" D2 z2 :: 
"D" A2"G" d3 B |"A7" (BA) AG"D" F2 |"D" A2"G" d3 B |"A7" (BA) AG F>G |"A7" E2"D" D2 z2 :|  