Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
M:2/4
K:G
['cB B2 ed c2 A/B/c/d/', 'a/g/f fB dG ce c'  
X:1
L:1/8
M:2/4
K:G
"^A""G" cB B2 |"Am" ed c2 |"D7" A/B/c/d/ fe |"G" dB G2 | cB B2 |"Am" ed c2 |"D7" A/B/c/d/ ef | 
"G" gg g z :|"^B""A7" a/^g/a =g/f/g |"D" f/g/f dd |"D7" f/a/c' f'e' | f/a/c'"G" e'd' | 
"A7" a/^g/a =g/f/g |"D" f/g/f dd |"A7" g/a/^c' f'e' |"D" d'd' d'"_>Teil A" z |: 
[K:C]"^C""C" ge e/d/c |"G7" Ba a/g/f | .f.f .B.B |"C" .e.e .e.e | ge e/d/c |"G7" Ba a/g/f | fB dG | 
"C" ce c z :|  