I have a first version of LilyPond producing quartertone scores. If anyone is interested in the patch, write me. My current patch is for LilyPond 1.2.6 (because I can't install the Guile update required for 1.3.x on one of my machines), but applying it to any other release should be easy, the only modified file is the script ly2dvi. However, I have to confess that I have cheated a bit and taken an "unelegant" shortcut. Instead of integrating quartertone support properly into the code (which would probably take me months just to understand the existing code), I add it by patching the TeX files generated by LilyPond. Double flats are replaced by single flats, and single flats by half flats (same for sharps). The limitations of this approach are - you can't have double accidentals and half accidentals in the same score - no useable MIDI output for quartertone scores - not quite perfect spacing due to the different widths of the accidentals However, I can live very well with that. If I ever have too much spare time, I might try to do a better job. For the moment I am more interested in using LilyPond! Konrad. -- ------------------------------------------------------------------------------- Konrad Hinsen | E-Mail: [EMAIL PROTECTED] Centre de Biophysique Moleculaire (CNRS) | Tel.: +33-2.38.25.55.69 Rue Charles Sadron | Fax: +33-2.38.63.15.17 45071 Orleans Cedex 2 | Deutsch/Esperanto/English/ France | Nederlands/Francais -------------------------------------------------------------------------------