Produce a music composition that mirrors the style of Bach's pieces.  
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 bass 
%%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
V:1
 G F/E/ A B | c c !fermata!B2 | A/B/ c G/F/ E | F E D !fermata!C | G F/E/ A B | c c !fermata!B2 | %6
 A/B/ c G/F/ E | F E D !fermata!C | E ^F ^G A/B/ | c B !fermata!A2 | B c d e | d d !fermata!c2 |] %12
V:2
 E D/C/ C/ D E/ | E3/2 D/ D2 | D C D C | C C C/B,/ G, | E D/C/ C/ D E/ | E3/2 D/ D2 | D C D C | %7
 C C C/B,/ G, | A,/ E D/ E E/D/ | E E E2 | F G G G | A G/F/ E2 |] %12
V:3
 G, G, G,/ F, G,/4F,/4 | E,/A,/ G,/^F,/ G,2 | A, G, G, G, | F, G,/A,/ A,/G,/4F,/4 E, | %4
 G, G, G,/ F, G,/4F,/4 | E,/A,/ G,/^F,/ G,2 | A, G, G, G, | F, G,/A,/ A,/G,/4F,/4 E, | %8
 A, A, B, A, | A, ^G,/D/ C2 | D E D C | C B, G,2 |] %12
V:4
"C" C,"Cm" C,"F" F,,"G7" G,, |"Am" A,,"C/D" D,"G" G,,2 |"Dm/F" F,"C/E" E,"G/B" B,,"C" C,/_B,,/ | %3
"F/A" A,,/_A,,/"C/G" G,,/^F,,/"Gm" G,,"C" C, |"C" C,"Cm" C,"F" F,,"G7" G,, | %5
"Am" A,,"C/D" D,"G" G,,2 |"Dm/F" F,"C/E" E,"G/B" B,,"C" C,/_B,,/ | %7
"F/A" A,,/_A,,/"C/G" G,,/^F,,/"Gm" G,,"C" C, |"A/C#" ^C,"D" D,"E7/D" D,/=C,/"F" F, | %9
"Am/E" E,/D,/"E" E,"Am" A,,2 |"Bdim/D" D,"C" C,"Csus2" C,/B,,/"C" C, |"Dm7/F" F,"G" G,"C" C,2 |] %12  