Develop a composition influenced by Bach's repertoire.  
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 c | c/d/ e d c | B2 !fermata!A e | f d e d | !fermata!c3 c | c/d/ e d c | B2 !fermata!A e | %7
 f d e d | !fermata!c3 c/d/ | e e f f | g f/e/ !fermata!d g | e e d c | B2 !fermata!A e | f d e d | %14
 !fermata!c3 z |] %15
V:2
 z3 G | A/B/ c B A | A ^G !fermata!A A | A =G G G | !fermata!G3 G | A/B/ c B A | %6
 A ^G !fermata!A A | A =G G G | !fermata!G3 G | c c/B/ A A | G2 !fermata!G G | G G G/F/ E | %12
 F/D/ E !fermata!E A | A G G/A/ B | !fermata!G3 z |] %15
V:3
 z3 E | F G G/F/ E | F E/D/ !fermata!C C | C B, C C/B,/ | !fermata!E3 E | F G G/F/ E | %6
 F E/D/ !fermata!C C | C B, C C/B,/ | !fermata!E3 E/F/ | G A A/G/ F/E/ | D C !fermata!B, D | %11
 C C B, B,/A,/ | A, ^G, !fermata!C ^C | D/E/ F/B,/ C G/F/ | !fermata!E3 z |] %15
V:4
 z6"C" C2 |"F" F,2"C" C,2"G" G,2"Am" A,2 |"Bm7b5/D" D,2"E" E,2"F" !fermata!F,2"Am" A,2 | %3
"Dm7" D,2"G" G,F,"C/E" E,F,"Gsus4" G,2 |"C" !fermata!C,6"C" C2 |"F" F,2"C" C,2"G" G,2"Am" A,2 | %6
"Bm7b5/D" D,2"E" E,2"F" !fermata!F,2"Am" A,2 |"Dm7" D,2"G" G,F,"C/E" E,F,"Gsus4" G,2 | %8
"C" !fermata!C,6"C" C,2 |"C" CB,"Am" A,G,"F" F,E,"Dm" D,C, | %10
"G/B" B,,2"Csus4" C,2"G" !fermata!G,,2"G/B" B,,2 |"C" C,D,"C/E" E,F,"G" G,^G,"Am" A,C, | %12
"Bm7b5/D" D,B,,"E" E,2"Am" !fermata!A,,2"A" A,2 |"Dm" D=C"G7/B" B,G,"C" CF,"G" G,G,, | %14
"C" !fermata!C,6 z2 |] %15  