NoteEdit: exportion chords to LilyPond

[Joerg Anders]

On Fri, 24 May 2002, Jan Nieuwenhuizen wrote:

> Joerg Anders <address@hidden> writes:
>
>
> >          Unfortunately, LilyPond
> >          does not take the width of the uptext into account. So
> >          it can happen the chords overlap.
>
> Too bad you haven't asked, LilyPond can do both.

I apologize for this statement. I didn't read about "\property 
Voice.textNonEmpty".
I changed it in noteedit-2.0.1 (and in its documentation).

>  I'm sure it's described in the manual.

... Hmm! Somtimes such essential things are difficult to find :-(
But you are right: I could ask!

> If you go through TeX, you can't use the tex macro parameter character
> `#'.

I knew it has to do with TeX. But unfortunately, I tried '\#' ...

>  However, you can use $\sharp$ and $\flat$

Yes, this works. Thank you!

> (how do you do flat > and natural now?).

Interestingly, it does not appear! I use the KGuitar chord dialog from
Mikhail Yakshin <address@hidden> as frontend. It produces
'#' but no natural sign. Perhaps in a later version ...(?)

> > LilyPond cannot deal with guitar chord diagrams. Actually it has a
> >          special feature for chord name annotation. But this is unusable
> >          for NoteEdit export because it tries reverse mapping from
> >          pitch combination to chord name.
>
> That's too bad.  Why can't you use it, how does NoteEdit calculate
> chord names?

Till now I don't calculate any chord name (will be, perhaps). The
user has to supply the chord names (and guitar chord diagrams).

On: http://rnvs.informatik.tu-chemnitz.de/lilyexa1/lilyexa1.html
there is a LilyPond example with the uptext variante.
Perhaps it makes more clear the "Chords-are-characterized-by-
a-set-of-pitches"- strategy cannot really help here. Note, in
measure 21 the chord is attached to a rest! If you play this
on guitar it makes sense to play Fm#7 at this position.
And I have no set of pitches at all, only single notes.

But even if I had chords: <a c e g> can be Am7 or C6. It is
said it depends on bass. This is true in most cases. But
in many other cases it depends on context.

BTW: I think about an automatic chord recognition algorithm.
I'm not quite sure whether I'll find one. But I'm convinced the
chord cannot be derived only from a chord's pitch combination.
Some heuristic must regard the context. And perhaps at the end
it comes clear: It is impossible with some sort of user interaction.(?)

-- 
J.Anders, Chemnitz, GERMANY (address@hidden)