Develop a musical creation in the signature style of Bach.  
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
 z3 G | E ^F !fermata!G G | E D !fermata!C C | G G A B | c B A A | !fermata!G2 z G | %6
 A B !fermata!c G | A G F F | !fermata!E2 z =c | A B !fermata!c A | G F !fermata!E G | %11
 E ^F !fermata!G c | B A !fermata!G G | E/F/ G A G | F E D D | !fermata!C4 |] %16
V:2
 z3 C | C C !fermata!B, D | D/ D B,/ !fermata!G, G, | D E3/2 ^F/ G | G/^F/ G2 G/F/ | %5
 !fermata!D2 z E | E/ D E/ !fermata!E C | C/B,/ C/^C/ D/C/ D | D !fermata!^C z G | %9
 G/F/4E/4 F !fermata!E F | E3/2 D !fermata!^C/ D | E B, !fermata!B, G/A/ | A/ G ^F/ !fermata!D D | %13
 C C C/ F E/ | D3/2 C B,/4A,/4 B, | !fermata!G,4 |] %16
V:3
 z3 E,/F,/ | G, A, !fermata!D, G, | G, G,/>F,/ !fermata!E, E, | G, C C D | C D E D/>C/ | %5
 !fermata!B,2 z C | C B, !fermata!A, E, | F, G, A, A, | !fermata!A,2 z C | C D !fermata!G, D/C/ | %10
 _B, A, !fermata!A, G, | G,/ A, G,/4^F,/4 !fermata!E, E/D/ | D D/>C/ !fermata!B, G, | %13
 G, C/_B,/ A,/>=B,/ C/>_B,/ | A,/G,/ G, A,/D,/ G,/F,/ | !fermata!E,4 |] %16
V:4
 z3"C" C, |"C7/Bb" _B,,"F#dim/A" A,,"G" !fermata!G,,"G/B" =B,, | %2
"C" C,"Gpower" G,,"C" !fermata!C,,"C" C, |"G/B" B,,"C" C,/B,,/"Am" A,,"G" G,, | %4
"C/E" E,"G/D" D,"Am7/C" C,"Dsus4" D, |"G" !fermata!G,,2 z"C/E" E, | %6
"Fmaj7" F,"G#dim" ^G,,"Am" !fermata!A,,"C" C, |"F" F,3/2 E,/"Dm" D,/E,/"Dm/F" F,/D,/ | %8
"Asus4" !fermata!A,2 z"C/E" E, |"F" F,/E,/"Bdim/D" D,"C" !fermata!C,"Dm" D, | %10
"Em7b5/D" D,/^C,/"Dm" D,"Asus4" !fermata!A,,"G/B" =B,, | %11
"C#dim" ^C,"B7/D#" ^D,"Em" !fermata!E,"C/E" E,/^F,/ |"G" G,"Dsus4" D,"G" !fermata!G,,"G/B" B,, | %13
"C" C,/D,/"C/E" E,/C,/"F" F,"Csus4" C, |"Dm7/C" C,/B,,/"C" C,"Dm7/F" F,,"G" G,, | %15
"C" !fermata!C,,4 |] %16  