Arrange a melody that reflects the style of Bach's works.  
X:1
T:Music21 Fragment
T:Music21 Fragment
T:Music21
C:Music21
%%score 1 2 3 4
L:1/8
M:4/4
K:C
V:1 treble 
%%MIDI program 0
%%MIDI control 7 100
%%MIDI control 10 64
L:1/4
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
 A A e e/f/ | g e c d/e/ | f2 !fermata!e2 | d d c d | e d c B | A2 !fermata!G2 | c B c/d/ e | %7
 d/c/ B !fermata!A2 | B A/B/ c B | !fermata!A4 |] %10
V:2
 E2 E2 AB c2 | dB cB A2 Bc | cB/A/ B2 !fermata!c4 | c3 B BA Gd | d c2 B A2 DG | %5
 G^F/E/ F2 !fermata!D4 | A2 B2 A2 A2 | A2 ^G2 !fermata!A4 | ^G2 AG A3 G | !fermata!E8 |] %10
V:3
 C2 CD E2 A2 | G2 G2 F3 G | FG/A/ G2 !fermata!G4 | A2 G>=F E2 G2 | G2 G3 ^F GD | %5
 EC A,D/C/ !fermata!B,4 | E2 E2 E2 E2 | F2 FE/D/ !fermata!C4 | E3 D E2 E>D | !fermata!^C8 |] %10
V:4
"Am" A,3 B,"Am/C" C2"Am" A,2 |"G/B" B,G,"C" C2"F" FE"Bdim/D" DC |"Dm" D2"G" G,2"C" !fermata!C4 | %3
"D7/F#" ^F,2"Gsus4" G,2"Am" A,2"G/B" B,2 |"C" C2"Gsus4" G,2"Am" A,2"G/B" B,2 | %5
"Am7/C" CA,"D/A" DD,"G" !fermata!G,4 |"Am" A,3 ^G,"Am" A,2"Am/C" C,2 | %7
"Dm" D,2"E" E,2"F" !fermata!F,4 |"E" E,D,"Am/C" C,B,,"Am" A,,2"Esus4" E,2 |"A" !fermata!A,8 |] %10  