Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:4/4
K:E
['A2 =G2']  
X:1
L:1/8
M:4/4
K:E
 =G2 =cA | =G4 E2 E2 | =F2 A2 A2 =G2 | =G4 G2 =cA | =G4 E2 E2 | =F2 A2 A2 =G2 | =G4 GABG | 
 =c4 =d4 | =cB A2 =G2 cA | =G2 G=F E4 | =G4 G=F=DF | E4 =GABG | =c4 =d4 | =cB A2 =G2 cA | 
 =G2 G=F E4 | =G4 G=F=DF | E4 |]  