Re: Tritone anomaly

[Graham Percival]

On 2-May-06, at 11:59 PM, Vivian Barty-Taylor wrote:

> I'm not sure if anyone else has noticed, or been
> bothered by it, but there's a slightly irritating
> anomaly when entering the interval of a tritone
> (augmented fourth.) When in \relative mode and using
> the interval in a melodic line, LilyPond assumes that
> the tritone goes down.

False.  LilyPond assumes that the interval is less than a fifth.  In 
other words,
c fis   % goes up
c ges  % goes down

Augmented fourths and diminished fifths are *not* the same in \relative 
mode.

>  However, when using it in a chord LilyPond assumes it goes up!

I'm not familiar with chord mode; now that you know how \relative 
works, are you certain this is a bug?  If so, could you send a small 
example that demonstrates it?

>  I haven't
> found any mention of this in the documentation,
> incidentally (although it may be there - I haven't
> looked that carefully.)

Please look carefully before sending an email.  If this info is 
lacking, then
http://lilypond.org/web/devel/participating/documentation-adding

Cheers,
- Graham