Craft a musical masterpiece that imitates Bach's signature style  
X:1
T:Music21 Fragment
T:Music21 Fragment
T:Music21
C:Music21
%%score 1 2 3 4
L:1/4
M:4/4
K:C
V:1 treble 
%%MIDI program 0
%%MIDI control 7 100
%%MIDI control 10 64
V:2 treble 
%%MIDI program 0
%%MIDI control 7 100
%%MIDI control 10 64
V:3 treble 
%%MIDI program 0
%%MIDI control 7 100
%%MIDI control 10 64
V:4 bass 
%%MIDI program 0
%%MIDI control 7 100
%%MIDI control 10 64
L:1/8
V:1
 c c g g | f g e !fermata!c | e e d d | c d B !fermata!G | d d e/d/ c/B/ | A3/2 G/ !fermata!G2 | %6
 g g g a | f g e !fermata!c | e e d d | c d B !fermata!G | c d e/=f/ g/f/ | e d/c/ !fermata!c2 |] %12
V:2
 G G G/ d c/ | d d/B/ c !fermata!G | c c c B | B/A/4G/4 A/^F/ G !fermata!D | G G G G | %5
 G/E/ ^F !fermata!D2 | d d ^c/d/ e | e/d/4c/4 d c !fermata!G | c c/B/ A/^F/ B | %9
 B/A/4G/4 A/^F/ G !fermata!D | G/E/ B c/B/ c | c B !fermata!G2 |] %12
V:3
 E E D E | A G G !fermata!E | G G G G | G/E/ D D !fermata!B, | B,/C/ D/B,/ C D | %5
 D3/2 C/4B,/4 !fermata!B,2 | B B _B A | A G G !fermata!E | G/E/ A/G/ ^F/D/ G | %9
 G/E/ D D !fermata!B, | C G G/F/ E/F/ | G G/>F/ !fermata!E2 |] %12
V:4
"C" C2"C" C2"G/B" B,2"C" C2 |"Dm7/C" C2"G/B" B,G,"C" C2"C" !fermata!C,2 | %2
"C" C,D,"C/E" E,F,"Gsus4" G,A,"G/B" B,G, |"Cmaj7/E" E,A,"D/F#" ^F,D,"G" G,2"G" !fermata!G,,2 | %4
"G" G,A,"G/B" B,G,"C" C2"Gsus4" G,2 |"Dsus4" D2"D" D,2"G" !fermata!G,4 | %6
"G" G, G2 =F"C#dim7/E" ED"A/C#" ^CA, |"Dm" D=C"G/B" B,G,"C" C2"C" !fermata!C,2 | %8
"C" C2"Am/C" C2"D7/C" C2"G/B" B,G, |"Cmaj7/E" E,A,"D/F#" ^F,D,"G" G,2"G" !fermata!G,,2 | %10
"C/E" E,A,"G" G,F,"C/E" E,D,"C" C,A, |"C/G" G,2"G" G,,2"C" !fermata!C,4 |] %12  