Develop a composition influenced by Bach's repertoire.  
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/ | _B c d c | f e/d/ !fermata!d c | f e d c | _B A !fermata!G G/A/ | _B c d c | %6
 f e/d/ !fermata!d =c | f e d c | _B A !fermata!G G | c c A d | d ^c !fermata!d d | g g a/g/ f | %12
 g/f/ e !fermata!d e | f e d c | d/c/ _B !fermata!A G/A/ | _B c d/c/ B | c/_B/ A !fermata!G g | %17
 g g a g | f e !fermata!d z |] %19
V:2
 z3 E | D/E/ F F/G/ A | A A !fermata!A A | A A _B/A/ G | D/ G ^F/ !fermata!D D | G A _B A | %6
 d ^c !fermata!A A | A/d/ d/c/ c/_B/ A/^F/ | G ^F !fermata!D D | G F/E/ F/G/ A | A A !fermata!A A | %11
 d c c d/c/ | _B E/F/4G/4 !fermata!F A | A G F/G/ A | D G !fermata!^F D | G A A/^F/ G | %16
 A/G/ ^F !fermata!D d | c c c d/G/ | A3/2 G/ !fermata!^F z |] %19
V:3
 z3 C | _B, A, B, F/E/ | D ^C !fermata!F E | D E/^F/ G G,/A,/ | _B,/C/ D !fermata!B, B,/A,/ | %5
 G,/_B,/ _E F F/G/ | A A !fermata!F E | D G,/A,/ _B, C | D C/_B,/ !fermata!B, B,/A,/ | G, C C F | %10
 E/D/ E !fermata!F F | F E F/E/ D | E/D/ ^C !fermata!A, C | D/=C/ _B,/C/ D/E/ ^F/G/ | %14
 A D !fermata!D _B,/A,/ | G,/_B,/ _E D E | _E A,/_B,/4C/4 !fermata!B, G, | =E/F/ G/E/ F/E/ D | %18
 D ^C !fermata!A, z |] %19
V:4
 z3"C" C, |"Gm" G,"F" F,"Bb" _B,"F/A" A,/G,/ |"Dm/F" F,/G,/"A" A,"Dm" !fermata!D,"Am" A, | %3
"Dm" D"Am/C" =C"Gm/Bb" _B,"C/E" E,/^F,/ |"Gm" G,"Dsus4" D,"Gm" !fermata!G,,"Gm" G,/=F,/ | %5
"Eb" _E,/D,/"Adim/C" C,"Bb" _B,,"F" F,/=E,/ |"Dm" D,"A" A,"Dm" !fermata!D"Am" A, | %7
"Dm" D,"Em" E,/^F,/"Gm" G,"Adim/Eb" _E, |"Gm/D" D,/C,/"D7" D,"Gm" !fermata!G,,"Gm" G,/=F,/ | %9
"C/E" =E,/D,/"Fpower/C" C,"F" F,"Dm/E" E,/D,/ |"Asus4" A,"A" A,,"Dm" !fermata!D,"Dm" D/C/ | %11
"G7/B" =B,"C" C"F" F,"Bb" _B,/A,/ |"Edim/G" G,"A" A,"Dm" !fermata!D,"A" A, | %13
"Dm" D,"Edim/G" G,/A,/"Bb" _B,"F#dim/A" A,/G,/ |"D/F#" ^F,"Gm" G,"D" !fermata!D,"Gm" G,/=F,/ | %15
"Eb" _E,/D,/"Adim/C" C,"Bb" _B,,"Eb" E,/D,/ |"Adim/C" C,"D" D,"Gm" !fermata!G,,"G" =B, | %17
"C" C/D/"C/E" E/C/"F" F,"Gm/Bb" _B, |"Dm/A" A,/G,/"A" A,/A,,/"D" !fermata!D, z |] %19  