Re: Lilypond and Jazz chords

[Jean-Alexis Montignies]

Le 9 juin 09 à 18:25, Carl D. Sorensen a écrit :

> On 6/9/09 9:16 AM, "Jean-Alexis Montignies" <address@hidden> wrote:
>
>
> > You can find an example of a chord notated as 'phrygian' (well it's  
> > more a
> > modal indication, but that's what the composer Gary Peacock  
> > intended) in the
> > lead sheet for Vignette.
> > More arguments for using names: Alt is much more easy to write and  
> > read, less
> > error prone than: 7.3-.5-.9-.11-.13-
>
> So if Alt is always (or primarily) 7.3-.5-.9-.11-.13- we should add  
> an alt
> modifier to LilyPond.  Then, we could say c:alt, and get just what the
> composer intends.  And then we should have the ChordNames context  
> generate
> CAlt.
If it's expandable as for the chord exceptions, why not.

> I'm not arguing that the list of modifiers is currently complete or
> sufficient.  Certainly we could add modifiers to make things  
> easier.  I
> haven't pursued that idea yet, because I haven't needed it for my  
> work.
>
> But as I said before, if anybody wants to create a chordname input  
> mode that
> takes a root, and arbitrary name string, and an optional added bass,  
> they're
> welcome to do so.
Yes, may be it would be good to have two ways of entering the chords.
One would be the current one where lilypond finds the chord markup  
from intervals from the chord root .
The other would be where lilypond finds the markup from a chord name  
(coming from a extendable dictionary?) (and possibly a realization as  
notes).

For my current needs, I can use the first system, but the second is  
closer to the way I think and easier to use.
I could help to implement that this summer, I have however currently  
no knowledge of scheme nor lilypond internals yet. My feeling is that  
the two are not so different and some code could be common to the two  
systems.

> Carl
Jean-Alexis