Compose a melody that captures the spirit of Bach's greatest 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 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 A | A A ^G E | A B c c | d c/4B/4c/ !fermata!B B | c d/e/4f/4 e c | f f e/d/ c/d/ | %6
 d2 !fermata!c c | B A G/^F/ E/F/ | G G A G | F2 !fermata!E e | d c/B/ B2 | !fermata!A3 z |] %12
V:2
 z3 C/D/ | E E E B, | E/^F/ ^G A A | A2 !fermata!^G G | A =G G F | A A A E | A G !fermata!G A | %7
 A/G/ G/^F/ E E | E/D/ ^C/D/ E E | E D !fermata!^C A | A/B/ E/D/ F E/D/ | !fermata!^C3 z |] %12
V:3
 z3 A,/B,/ | C C B, ^G, | A, D E E | F A, !fermata!E E | E B, C A, | D D C C | C B, !fermata!E E | %7
 ^F/E/ C B, B, | B, _B, A, A, | A,2 !fermata!A, =C | C/B,/ A, A, ^G, | !fermata!E,3 z |] %12
V:4
 z6"Am" A,2 |"Am" A,,B,,"Am/C" C,D,"E" E,F,"E" E,D, | %2
"Am/C" C,D,"G#dim/C" C,B,,"Am" A,,E,"Am" A,G, |"Dm/F" F,E,"F" F,D,"E" !fermata!E,2"E" E,2 | %4
"Am" A,G,"G7/F" F,G,"C" C,D,"Fmaj7/E" E,F, |"Dm" D,E,"Dm/F" F,G,"Am" A,B,"Am" A,G, | %6
"Dm7/F" F,E,"G7/F" F,G,"C" !fermata!C,2"Am" A,2 |"B7/D#" ^D,E,"F#dim" ^F,D,"Em" E,F,"Em/G" G,F, | %8
"Em" E,=F,"C#dim7/E" E,D,"A/C#" ^C,A,,"A7/C#" B,,C, | %9
"Dm" D,E,"Dm/F" F,G,"A" !fermata!A,2"Am" A,G, |"D7/F#" ^F,^G,"Am" A,=F,"Bm7b5/D" D,B,,"E" E,2 | %11
"A" !fermata!A,,6 z2 |] %12  