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The triosonata in c minor is an arrangement of an original work in g minor by
J. H. Roman. It is typeset with mtx based on the pmx typesetting by Don Simons
archived by GMD.

After having transferred Don's pmx typesetting into mtx source files I made a
litterary transposition of the mtx sources a fourth upwards to c minor using a
perlscript trmtx.pl created for this purpose, see
http://www.gmd.de/Misc/Music/musixtex/software/mtx/trmtx.zip. Allthough pmx
has a feature for transposing the output result this didn't cover my needs as
I had to shift the octave of certain sections of the basso part in order to
keep it playable. The perlscript mentioned calculates the new pitches
resulting from shifting the original notes the wanted number of
\internotes. When this transposition has been done the resulting mtx source
may be further edited.

To transposed and rearranged basso part I have added a new staff typeset in
small types and containing a realization of the figured bass for
harpsichord. As the solo parts have been transposed litterarily Don's
typesetting of them has remained unchanged. During my edition of the
harpsichord part I have made a few changes to the bass figures provided by Don
(there are no figures in Roman's original manuscript).

The aim of this new edition of the triosonata has been to provide score and
parts with arranged figured bass ready for performance. It should be stressed,
however, that a figured bass arrangement like the current one is to be seen as
one possible among several other ways of realizing the basso continuo. While
my arrangement of the the harpsichord part intentionally has been kept very
simple a musician wanting to perform the continuo part in accordance with the
practice of the baroque era would improvise more or less brilliantly taking
the current performance conditions into account.

As each of the four movements have been typeset in separate mtx source files
it requires several steps to get from these to the final score and parts:

1. execute the pmx preprocessing (prepmx) on all mtx source files 

2. execute the pmx score extraction (scor2prt) on all the pmx files
   (trsc1.pmx, trsc2.pmx ...) produced in step 1

3. execute the MusiXTeX preprocessing (pmxab) on the pmx score sources
   (trsc1.pmx, trsc2.pmx ...) and the recorder and basso parts sources
   (trsc14.pmx, trsc13.pmx, trsc11.pmx ...) produced in step 2.

4. produce the final dvi output of the complete score and it's separate parts
   by executing tex - musixflx - tex on the scripts trsc.tex, trpcr1.tex,
   trpcr2.tex and trpcb.tex linking scripts

5. if you need postscript files execute dvi2ps on the files trpcr1.dvi,
   trpcr2.dvi ... resulting from step 4.

The font definitions for the front pages are read by the linking scripts from
the file font.tex. The macro \curlybrackets read from the file curly.tex for
putting a piano brace around the basso- and harpsichord staves has recently
been published on the mutex mailing list by Mthimkhulu Molekwa
(MMolekwa@rrs.co.za).

Christian Mondrup, Computer Programmer
Scandiatransplant, Skejby Hospital, University Hospital of Aarhus
Brendstrupgaardsvej, DK 8200 Aarhus N, Denmark
Phone: +45 89 49 53 01, Telefax: +45 89 49 60 07