Compose a piece influenced by Bach's 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
V:1
 z3 g | a g/f/ e/f/ g | f/e/ f !fermata!e d | e f g f/e/ | d/c/ d !fermata!c g | a g/f/ e/f/ g | %6
 f/e/ f !fermata!e d | e f g f/e/ | d/c/ d !fermata!c c | d e f/e/ d | e d !fermata!c c/d/ | %11
 e f g a | e ^f !fermata!g e/=f/ | g a g/f/ e | f2 !fermata!e a | a a d g | f e !fermata!d f | %17
 e d c d/c/ | _B A !fermata!G G | c d e3/2 f/ | g f/e/ d e/f/ | d2 !fermata!c z |] %22
V:2
 z3 c | c B c B | A/ c B/ !fermata!c d | c c c c | c B !fermata!G c | c B c B | %6
 A/ c B/ !fermata!c d | c c c c | c B !fermata!G G | G/A/ B A A/G/ | G F !fermata!E A | %11
 G A _B A/=B/ | c/B/ c/d/ !fermata!B G | c c d e | e/^c/ d !fermata!c e | d A/F/ G/A/ _B | %16
 A G !fermata!F d | G/A/ _B A/G/ A | A/ G ^F/ !fermata!G G/=F/ | E/D/ C/B,/ C c | B c c c | %21
 c B !fermata!G z |] %22
V:3
 z3 E | F/E/ D A D/E/ | F/A/ G !fermata!G G | G C/D/ E/C/ A | D/E/ F !fermata!E E | F/E/ D A D/E/ | %6
 F/A/ G !fermata!G G | G C/D/ E/C/ A | D/E/ F !fermata!E E | D G C D | D/ C B,/ !fermata!C C | %11
 C C C C | C/D/4E/4 D !fermata!D C | C/G/ F/E/ D A | A2 !fermata!A A/G/ | F/E/ D D/^C/ D/E/ | %16
 ^C/ D C/ !fermata!D A,/=B,/ | =C G/=F/ _E D | D C !fermata!=B, =B, | C G G A | G2 A/G/ F | %21
 G/A/ G/F/ !fermata!E z |] %22
V:4
 z3"C" C |"F" F,"G" G,"Am" A,"G/B" B,/C/ |"Dm" D"G" G,"C" !fermata!C"G/B" B, | %3
"C" C/B,/"F/A" A,"C/E" E,"F" F, |"Gsus4" G,2"C" !fermata!C,"C" C |"F" F,"G" G,"Am" A,"G/B" B,/C/ | %6
"Dm" D"G" G,"C" !fermata!C"G/B" B, |"C" C/B,/"F/A" A,"C/E" E,"F" F, | %8
"Gsus4" G,2"C" !fermata!C,"C" C |"G/B" B,"Em/A" A,/G,/"F/A" A,"Bm" B, | %10
"C" C"G7" G,"C" !fermata!C,"F" F, |"C" C/_B,/"F/A" A,/G,/"C7/E" F,/E,/"F" F,/G,/ | %12
"Am" A,"D" D,"G" !fermata!G,"C" C/D/ |"C" E"F" F"G/B" B,"A/C#" ^C | %14
"Dm" D"Dm" D,"A" !fermata!A,"A/C#" ^C, |"Dm" D,/E,/"Dm/F" F,/D,/"Gm/Bb" _B,"Gm/A" A,/G,/ | %16
"F+/A" A,"A7" A,,"Dm" !fermata!D,"Dm" D, |"C/E" E,/^F,/"Am7b5/G" G,2"D/F#" F, | %18
"Gm" G,"D7" D,"G" !fermata!G,"Em" E, |"Am" A,"Gsus4" G,"C" C/B,/"Am" A, | %20
"Em" E,/D,/"Csus4" C,"Dm7/F" F,/E,/"Dm9" D, |"Gsus4" G,/F,/"G" G,"C" !fermata!C, z |] %22  