Re: Microtonal accidentals

[Graham Breed]

On 11/03/2013 05:15 PM, Joseph Rushton Wakeling wrote:

> So, there needs to be a way of saying: these are the staff pitches and
> the staff positions they correspond to (define c, d, e, f, g, a, b) and
> these are the alterations and the accidentals they correspond to (define
> -s, -f, etc.), now give me my list of available pitch names ...

There are three approaches to this:

1) Define note names programmatically.  You have a scheme interpreter at 
all stages, after all.  I do this for tripod notation.

2) Have commands to apply accidentals.  This is a solved problem as 
well.  I have JI Sagittal support where you specify the pitch as a ratio 
relative to the tonic.

3) Have chained accidentals, like for Extended Helmholtz JI.  So you 
have a \sharp command that sharpens the pitch and adds a glyph to the 
accidental string.  This way, you can have an open ended set of 
accidental strings for an open ended pitch space.  I think this has been 
implemented for the visuals but not the sound.  There are problems 
getting both to work together.


                  Graham