Re: [tablatures] harmonics in tablature

[Patrick Schmidt <p.l.schmidt@xxxxxx>]

Am 17.09.2010 um 08:11 schrieb Marc Hohl:

> Hi Patrick, hello all,
>
> Patrick Schmidt schrieb:
> > Hi all,
> >
> > I'm having difficulties to indicate in tablature where to place a  
> > finger to get harmonics other than the first harmonic (see Ex. 1).  
> > The first harmonic is normally produced in the 12th fret and  
> > sounds in the same octave as if the string were stopped in the  
> > 12th fret (one octave above open string). In the case of other  
> > harmonics the pitch or the octave of a fretted note isn't  
> > necessarily the same as the pitch of the resulting harmonic.  Of  
> > course LilyPond calculates the fret number of a given pitch name  
> > so it's no surprise that in Ex. 2–4 the fret numbers in tablature  
> > differ from those indicated in the text markups. I would like to  
> > engrave the sounding pitch of a harmonic in standard notation and  
> > the place where to put one's fingers in tablature. Is there a way  
> > to adjust fret numbers in Ex. 2–4? Or is it possible in Ex. 5–6  
> > to get rid off the note head for the stopped position in standard  
> > notation and typeset the fret number(s) in single angle brackets  
> > in tablature?
> >
> > Thanks for any hint!
> > patrick
> I don't have a hint, but generally, it would be a useful  
> enhancement to have a better input
> possibility for harmonics. I'd propose two functions, say
>
> \harmonic-by-ratio <ratio> <note>
> and
> \harmonic-by-fret <fret> <note>
>
> so, for example, you can code
>
> \harmonic-by ratio 1/3 e,,4 and get the second harmonic (h,4) on  
> the seventh fret: <7>,
> whereas
> \harmonic-by ratio 2/3 e,,4 would yield to the same harmonic note  
> played on the 21th fret.
*
> The same result would be available by saying
> \harmonic-by fret 7 e,,4 or \harmonic-by-fret 21 e,,4
*
> Harmonics over the fifth partial tone cannot be coded directly in  
> lilypond, because
> fret numbers like 2.6 or 2.1 are not supported yet.
> I am not sure whether I can implement this, but I would give it a try.
>
> What do you think?
Sounds great!
If I can help in any way just tell me!

Thanks,
patrick

* you mean the 19th fret

1st harmonic: fret 12
2nd harmonic: fret 7/19
3rd harmonic: fret 5/24
4th harmonic: fret 4/9/16
5th harmonic: fret 3⅓/... (the others are very hard if not  
impossible to play)

> Marc