The examples in this directory use a 17-tones well temperament by George 
Secor.

+ SCORE

As its notation require only the Tartini-Couper accidentals 
("quartertones"), which are built in abcm2ps, the score is generated
directly from an ABC file.

+ MIDI

The tool abc2alias (see inside the folder microabc/tools/ ) is used to 
convert the quartertones in the ABC file to Sagittal aliases (.abp 
file). Then, the .abp file is interpreted by microabc to generate an
ABC file for MIDI in the chosen scale.

+ MACHAUT EXAMPLE (Ma fin est mon commencement)

Secor's 17 Well Temperament is applied on a well-known rondeau by 
Guillaume de Machaut. The same procedure as above is used, although the
Tartini-Couper accidentals are not used: ABC is converted to Sagittal 
(abc2alias), and then microabc sets the tuning for MIDI.

+ HOW IT IS DONE

17wt.scl -> Scala file. Defines the tuning.

secor.txt -> microabc file. Just reads the Scala file 17wt.scl and sets 
Sagittal aliases (including the equivalent names) for each scale degree.
(The microabc instruction ``sagittalapprox:'' could be used 
alternatively, saving the explicit definition of equivalent names for 
every scale degree.)

secor.abc , machault.abc -> The input music files, written as pure ABC 
(possibly using "quartertones").

Commands:
    To obtain a PostScript score:
	abcm2ps -O= {input.abc}
    To obtain MIDI:
	abc2alias < {input.abc} > {out.sagittal}
	microabc -isecor.txt -M{out.sagittal} > {formidi.abc}
	abc2midi {formidi.abc}

+ TIP

The program tkabc can be used to write the input ABC file from a 
graphical user interface. It is included in tclabc package, available 
at http://moinejf.free.fr
