Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:4/4
K:Cdor
['', 'G2 E2 E2 F>E D>FE>G', 'D>E F>GF>E', '(3EDC B,2']  
X:1
L:1/8
M:4/4
K:Cdor
[K:Bb]|: (3bag | f2 d>B B2 F>D | G2 E2 E2 F>E | D>FE>G F>Be>d | c>BA>G F2 (3bag | 
 (3fbf (3dfd (3BdB (3FDF | G2 E2 E2 F>E | D>FE>G F>BA>c | B2 B,2 B,2 :: D>E | F>GF>E D>EF>D | 
 G>AG>F E>DE>F | G>AG>^F =E>Gc>B | A2 F2 F2 D>E | F>GF>E D>E (3FED | E2 g2 g2 f>e | d>fB>d c>fA>c | 
 B2 B,2 B,2 :: (3EDC | B,2 D>B, F>B,D>B, | A,>B,C>D (3EFE (3EDC | D>FE>G F>BA>c | 
 e>cA>F E>D (3EDC | (3B,CB, D>B, F2 (3DCB, | A,>B,C>D E2 (3EDC | D>BA>G (3FGF (3EDC | 
 B,2 A,2 B,2 :|  