Compose a piece that reflects the artistic essence of Bach's works.  
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 E | A G F E | D2 !fermata!E B | c c B/A/ B | !fermata!A3 E | A G F E | D2 !fermata!E B | %7
 c c B/A/ B | !fermata!A3 c | B/A/ G A B | c2 !fermata!c G | A G F/E/ F | !fermata!E3 =c | %13
 B/c/ d c B | A2 !fermata!B E | F E D G | !fermata!E3 z |] %17
V:2
 z3 C | C/D/ E A,/B,/ C | C B,/A,/ B, E | E E E3/2 D/ | C3 C | C/D/ E A,/B,/ C | C B,/A,/ B, E | %7
 E E E3/2 D/ | C3 E | D D/C/ C F | G F E E | E/D/ D/^C/ D D | ^C3 D | D D E/ D ^F/ | E D D C | %15
 C C D D | D C !fermata!B, z |] %17
V:3
 z3 A, | A,/B,/ C C/B,/ B,/A,/ | A,/^G,/ A, G, G, | A, A, A, ^G, | E,3 A, | A,/B,/ C C/B,/ B,/A,/ | %6
 A,/^G,/ A, G, G, | A, A, A, ^G, | E,3 A,/G,/ | F, G, F,/A,/ D | C/_B,/ A, G, C/B,/ | %11
 A, _B,/A,/ A, A, | A,3 A, | G,3/2 ^F,/ G,/A,/ B, | C/A,/ ^F, G, G, | A, G, G, B, | %16
 B,/^G,/ A,/^F,/ G, z |] %17
V:4
 z3"Am" A,/G,/ |"F" F,"C/E" E,"Dm7" D,"C" C, |"Dm7/F" F,2"E" !fermata!E,"E" E, | %3
"Am" A,,/B,,/"Am/C" C,/D,/"Esus4" E,"E" E, |"Am" !fermata!A,,3"Am" A,/G,/ | %5
"F" F,"C/E" E,"Dm7" D,"C" C, |"Dm7/F" F,2"E" !fermata!E,"E" E, | %7
"Am" A,,/B,,/"Am/C" C,/D,/"Esus4" E,"E" E, |"Am" !fermata!A,,3"Am" A, | %9
"Bdim/D" D,"Em" E,"F" F,"Bdim/E" E,/D,/ |"C/E" E,"F" F,"C" !fermata!C,"C" C, | %11
"F" F,"Em7b5" E,"Dm" D,/F,/"Dm/E" E,/D,/ |"A" !fermata!A,3"D7/F#" ^F, | %13
"G" G,/A,/"G" B,"C/E" E,/^F,/"G" G, |"Am/C" C,"D" D,"G" !fermata!G,,"C" C,/B,,/ | %15
"F/A" A,,/B,,/"C" C,"Csus2" C,/B,,/"G/A" A,,/B,,/ |"Cmaj9" C,/B,,/"Am" A,,"E" !fermata!E, z |] %17  