Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:2/4
K:D
['', 'E2 F2 GA z G F>E']  
X:1
L:1/8
M:2/4
K:D
 A/G/ |:"D" F>E D/E/F/G/ | .A.A .AB/A/ |"A" GF/G/ AB |"D" A/G/F FA/G/ |"D" F>E D/E/F/G/ | 
 .A.A .AB/A/ |"A" GF/G/ AB/A/ |1"D" D2 z A/G/ :|2"D" D4 |:"A" E2 F2 | GA z G |"D" F>E DE | 
 F/G/F/E/ DD |"A" E2 F2 | GA z G |"D" F>E DD/E/ |1 D D3 :|2 D4 ||  