Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:4/4
K:D
['A>Fd>B A>Bd>e', 'a2 a>f']  
X:1
L:1/8
M:4/4
K:D
 (3dcB | A>Fd>B A>FF>G | A>Fd>B A2 F>G | A>Fd>B A>Bd>e | f>ee>^d (3efe =d>B | A>Fd>B A>F (3FFG | 
 A>Fd>B A>Bd>e | f>a (3agf g>Ae>A | d>BA>F D2- || D>A | d>ef>g a>ba>f | g>ag>e a2 a>f | 
 d2 (3efg a>ba>f | b>fa>f (3efe d>c | d>ef>g a>b (3agf | b>a (3gab a2 a>f | g>fe>g f>A (3gfe | 
 d>BA>F D2 ||  