Hi Amelie,
2015-03-15 10:57 GMT+01:00 Amelie Zapf <a...@ameliezapf.com>:
> Dear lilypond-user team,
>
> starting with LilyPond 2.16, and on into 2.18, the chord naming
> algorithm does not distinguish between a chord <c e g bes d> and <c e g
> d'> in relative notation. Both are named "C9".
Yep.
The 'additionalPitchPrefix' was changed to "", to get rid of too many "add"
in certain names.
> This is wrong, since
> functionally, the former is a dominant, the latter a tonic, so there
> must be a distinction between the two.
I slightly disagree.
Yes, LilyPond should distinguish between those two chords per default.
Though, I can easily imagine situations where <c e g d> is dominant or
subdominant or tonic, depends on the surrounding circumstances.
> The behavior up until 2.14 (which
> I used until recently) was correct, in which the former was called "C9",
> the latter "Cadd9".
>
> Is there a script file I can modify so I can get the system to behave
> correctly?
>
> Kind regards,
>
> Amy
2015-03-15 12:12 GMT+01:00 Amelie Zapf <a...@ameliezapf.com>:
> Dear lilypond-user team,
>
> problem solved: \set Score.additionalPitchPrefix = "add" does the trick.
> However, this should be default behavior, because C9 and Cadd9 are just
> not the same thing, but describe chords with vastly different harmonic
> function.
Again, I disagree here. Correct ChordNames [?](together with some common
agreements) will show only which pitches are present, not their harmonic
function.
Look at <c a c e> (rendered as C6)
Is it C-major with 6th replacing 5 or is it an inversion of a-minor?
I'd say, depends ...
Anyway, you already found
\set additionalPitchPrefix = #"add"
Though this will have the above already mentioned disadvantage, see the
following example, last chord.
\new ChordNames
\chordmode {
\set additionalPitchPrefix = #"add"
<c' e' g' bes' d''>
<c' e' g' d''>
c:7.9
c:5.9
c:5.7+.11+.13
}
Another possibility would be to add <c e g d'> to 'chordNameExceptions':
chExceptionMusic = {
<c e g d'>1-\markup { \super "add9" }
}
chExceptions =
#(append
(sequential-music-to-chord-exceptions chExceptionMusic #t)
ignatzekExceptions)
\new ChordNames
\chordmode {
\set chordNameExceptions = #chExceptions
<c' e' g' bes' d''>
<c' e' g' d''>
c:7.9
c:5.9
c:5.7+.11-.13
}
See:
http://www.lilypond.org/doc/v2.18/Documentation/notation/displaying-chords#customizing-chord-names
It may be discussable to add it to 'ignatzekExceptionMusic' from
chord-modifiers-init.ly as default.
Cheers,
Harm
_______________________________________________
lilypond-user mailing list
lilypond-user@gnu.org
https://lists.gnu.org/mailman/listinfo/lilypond-user
