Here are the PostScript-files for KV423 - to be printed on A4-size paper
                                                             (210mm x 297mm)
  score.ps  contains the score in landscape
  parts.ps  contains the parts
              pages  1 to 10 for the violin part
              pages 11 to 19 for the viola  part
              pages 21 to 29 for a part for a 2nd violin (octaviated viola)
  va-vc.ps  contains the parts for the viola/cello edition

If you have a printer for A3-size paper (420mm x 297mm) parts can be printed
doublesided from partsa3.ps. Normally the sheets should be cut at the right
side by less than 1.2 cm, binded at the left side and folded at the former
middle of the page. The second sheet should be folded in the middle before
being binded. So you get three parts:

          sheet     back        front    sheet
 Violin                     |Title|Title|  1   3-3-2  means:
            1  |3-1-1|3-1-2||3-1-3|        2   | | +--- page 2 of 
            2         3-2-1||3-2-2|            | +----- 3rd movement of
                      3-3-1||3-3-2|3-3-3|  3   +------- KV42-3
 Viola      3  |blank|blank||Title|Title|  4
            4  |3-1-1|3-1-2||3-1-3|3-2-1|  5
            5  |3-3-1|3-3-2||3-3-3|blank|  6   This sheet may be cutted to A4
 Violin 2   6  |blank|blank||Title|Title|  7
            7  |3-1-1|3-1-2||3-1-3|3-2-1|  8
            8  |3-3-1|3-3-2||3-3-3|blank|  9   This sheet may be cutted to A4
            9  |blank|blank|

Enjoy -- Please report any errors to  Werner.Icking@gmd.de       7. Nov. 1993

Addendum (15. Sep. 1993): 
If you want to print on letter-size paper you can try to insert the follow-
ing lines into the ps-files at a convenient place :-). That may be just after
"%%EndSetup" and before "%%Page: 1 1" or may be just after the 1st line.
%%-----------------------------------------------------------------snipp-----
/GMD_realshowpage /showpage load def
/GMD_myshowpage { GMD_realshowpage 1.00 0.94 scale 14 49 translate } bind def
/showpage { GMD_myshowpage } bind def
1.00 0.94 scale 14 49 translate
%%-----------------------------------------------------------------snipp-----
Addendum (27. Nov. 1993):
  1.00 0.94 scales ("magnifies") the page in horizontal and vertical direction
    14   49 moves the page in horizontal and vertical direction by 14 resp. 49
            units (of 1/72 inch?). You may need different shifts or factors.
  I include testpage.ps with two pages of output for testing purpose.

Addendum (26. Sep. 1993): I found some errors in the 3rd movement which have
  been corrected in the current version.
  violin: 
   bar 80:                    e #d               (was: e d)
  viola:
   bar 79:                    g e #d e a e #d e  (was: g d #c d a d #c d)
   bar 81:                    e #d               (was: e d)
   bar 149/151, 2nd quarter:  chord g b          (was: chord g c)

  The additional part for a second violin has been revised.

Addendum (17. Oct. 1993): I beautified some beams and slurs and revised the
  the octaviation of the part for a second violin.

Addendum (07. Nov. 1993): I reorganized the a3-paper output

Addendum (28. Nov. 1993): I corrected the violin part 3rd movement bar 170:
  2nd quarter:                =f d b             (was: f d b)
  4th quarter:                =f e f             (was: f e f)

Addendum (25. Feb. 1995): I added some "doubled" slurs in bars 44 and 46 of
  the 1st movement of the violin part. All parts have been revised to use
  the nicer slurs of MusiXTeX.

Addendum (07. Apr. 1995): I corrected the violin part 3rd movement bar 16
                          (same in bars 73, 140):
  1st eighth:                 1/8th rest         (was: 1/16 rest)

Addendum (15. Sep. 1996): A viola/cello edition has been added.

Addendum (05. Jul. 1999): Andrej Kluge pointed me at a hidden dot in bar 40
                          of the violin voice of the score of the 1st movement.