Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
M:3/4
K:C
['B2 B2'  
X:1
L:1/8
M:3/4
K:C
[K:F]"^A""F" A>B .c2 .d2 |"Gm" .c2 B2 B2 |"C7" G>A B2 c2 |"F" B2 A2 A2 | f>f g2 f2 | 
"Gm" f2 e2 e2 |1"C7" d>d e2 d2 |"F" d2 c2 c2 :|2"C7" d>c B2 G2 |"F" F2 F2 z2 |: 
[K:C]"^B""C" (EG) (cG) e2 |"Dm" (ed) A2 A2 |"G7" (GB) (dB) f2 |"C" (fe) c2 c2 | (EG) (cG) e2 | 
"Dm" (dA) (dA) f2 |"G7" (ef) (ed) (AB) |1"C" dc BA G2 :|2"C" c2 c2"_>Teil A" z2 |: 
[K:Bb]"^C""Bb" FF F2 d2 |"Cm" e2 G2 G2 |"F7" FF A2 c2 |"Bb" d2 B2 B2 | B2 c3 B |"F7" .A2 !>!e4 |1 
 G2 A3 G |"Bb" .F2 !>!d4 :|2 GA d2 c2 |"Bb" B2 B2 z2"^D" |:"Eb" BA GA BG |"Bb" (G2 F2) .F2 | 
"F7" (EF) .A2 .G2 |"Bb" .G2 .F2 .F2 |"Eb" BA GA BG |"Bb" (G2 .F2) .F2 |"F7" FG AF GA | 
"Bb" .B2 .B2 z2 :|  