Create a tune inspired by Bach's musical 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
V:1
 e f g g | f e d !fermata!d | e f g/f/ e | d d !fermata!c2 | e f g g | f e d !fermata!d | %6
 e f g/f/ e | d d !fermata!c2 | d e f f | e e !fermata!d2 | f g a a | g g !fermata!f2 | e f g g | %13
 f e d !fermata!d | e f g/f/ e | d d !fermata!c2 |] %16
V:2
 c c B c | c/B/ c B !fermata!B | c c d3/2 c/ | c B !fermata!G2 | c c B c | c/B/ c B !fermata!B | %6
 c c d3/2 c/ | c B !fermata!G2 | B ^c d d | d ^c !fermata!A2 | A c c3/2 d/4_e/4 | %11
 d c/_B/ !fermata!A2 | G c G/A/ _B | A/=B/ G/A/ B !fermata!B | c c d/B/ c | c B !fermata!G2 |] %16
V:3
 G A G/F/ E | F G G !fermata!G | G A G3/2 A/4_B/4 | A G/F/ !fermata!E2 | G A G/F/ E | %5
 F G G !fermata!G | G A G3/2 A/4_B/4 | A G/F/ !fermata!E2 | G G A A | A/_B/ A/G/ !fermata!F2 | %10
 F E F F | F E !fermata!C2 | C C D E | E/ D C/ G !fermata!G | G A G G | A G/F/ !fermata!E2 |] %16
V:4
"C" C"F/A" A,"Em" E,"Am7" A, |"Dm" D,"C/E" E,/F,/"G" G,"G" !fermata!G, | %2
"C" C/B,/"F/A" A,"G/B" B,"C" C |"Dm7/F" F,"G" G,"C" !fermata!C,2 |"C" C"F/A" A,"Em" E,"Am7" A, | %5
"Dm" D,"C/E" E,/F,/"G" G,"G" !fermata!G, |"C" C/B,/"F/A" A,"G/B" B,"C" C | %7
"Dm7/F" F,"G" G,"C" !fermata!C,2 |"G" G,"C#dim/F" F,/E,/"Dm" D,/E,/"Dm/F" F,/G,/ | %9
"Asus4" A,"A" A,"Dm" !fermata!D,2 |"Dm" D"C" C/_B,/"F/A" A,/G,/"F" F, | %11
"Gm7/Bb" _B,"C" C"F" !fermata!F,2 |"C" C/=B,/"F/A" A,"Gm/Bb" _B,"C#dim7" ^C, | %13
"Dm" D,"Em" E,/F,/"G" G,"G" !fermata!G, |"C" C,/C/"F/B" B,/A,/"G/B" B,/G,/"C" C/E,/ | %15
"Dm7/F" F,/D,/"G" G,"C" !fermata!C,2 |] %16  