Develop a composition influenced by the signature elements found in 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
L:1/8
V:1
 z3 E | A B c d | B3/2 A/ !fermata!G G | A A B B | !fermata!E3 E | A B c d/c/ | %6
 B3/2 A/ !fermata!=G G | A A B B | !fermata!E3 e | d c c B | !fermata!c3 B | c d e e | %12
 d3/2 c/ !fermata!B B | c B A A | B3/2 A/ !fermata!G G/=F/ | E A A/B/ ^G | !fermata!A3 z |] %17
V:2
 z3 C/D/ | E E E D | D/E/ ^F !fermata!E E | E D D/F/ E/D/ | !fermata!C3 B, | E ^F/^G/ A A/=G/ | %6
 F/E/ D !fermata!E D | E E D/E/ ^F | !fermata!B,3 C | A A G G | !fermata!G3 G/F/ | E D C E | %12
 A/G/ A/^F/ !fermata!G G | G/F/ G/E/ C C | B,/^C/ ^D !fermata!E =D | D/C/ C/D/ E/F/ E | %16
 !fermata!E3 z |] %17
V:3
 z3 G,/A,/ | C B, A, A, | B,2 !fermata!B, C | C/B,/ A, G,/A,/ B, | !fermata!A,3 ^G, | A, D E A, | %6
 A,/^G,/ A, !fermata!B, B, | A,/B,/ A,/G,/ ^F,/G,/ A, | !fermata!^G,3 A, | A, D D/E/ F/D/ | %10
 !fermata!E3 D | C G G C/B,/ | A, D !fermata!D D | G, C C/B,/ A,/G,/ | ^F,/G,/ A, !fermata!B, G, | %15
 G, A,/B,/ C/D/ B, | !fermata!^C3 z |] %17
V:4
 z6"Am7" A,,2 |"Am" A,2"E/G#" ^G,2"Am" A,=G,"D/F#" ^F,2 | %2
"G" G,2"B/D#" ^D,2"Em" !fermata!E,2"C" C,2 |"Fmaj7" F,2"D/F#" ^F,2"G" G,2"E/G#" ^G,2 | %4
"Am" !fermata!A,6"E" E,D, |"Am/C" C,2"Bm" B,,2"Am" A,,G,"Dm/F" F,E, | %6
"Bm7b5/D" D,E,"Bm7b5/F" F,2"Em" !fermata!E,2"G/B" B,,2 | %7
"Am/C" C,2"A/C#" ^C,2"Bm/D" D,2"B7/D#" ^D,2 |"E" !fermata!E,6"Am" A,G, | %9
"Dm/F" F,2"D7/F#" ^F,2"Gsus4" G,2"G" G,,2 |"C" !fermata!C,6"G" G,2 | %11
"Am" A,2"G/B" B,2"C" CB,"Am" A,G, |"D/F#" ^F,E,"D/F#" F,D,"G" !fermata!G,2"G" G,=F, | %13
"C/E" E,D,"Cmaj7/E" E,C,"F" F,G,"F" F,E, |"B/D#" ^D,E,"B7/F#" ^F,2"Em" !fermata!E,2"G/B" B,,2 | %15
"C" C,2"F" F,2"Am/E" E,D,"E" E,E,, |"A" !fermata!A,,6 z2 |] %17  