Hello Luca,
with the help of the french blog post jmechmech linked in his reply, I
cooked up the following from your code:
%%%%%%%%%%%%
\version "2.18.2"
#(define (lower-extension pitch chbass)
"Return lowered markup for pitch note name."
#{
\markup \raise #-1.9 \halign #0.2
#(note-name->markup pitch chbass)
#})
chExceptionMusic = {
<c e g bes>1-\markup { "7" }
%<c e g b>1-\markup { "<7/" \raise #-2.5 "B" } % for illustration
purposes only
<c ees g>1-\markup { ">" }
}
chExceptions = #(append
(sequential-music-to-chord-exceptions chExceptionMusic #t)
ignatzekExceptions)
\layout {
\context {
\ChordNames
\override ChordName.font-name = #"New Real Book Chords"
chordNameExceptions = \chExceptions
slashChordSeparator = \markup {
% the \hspace commands simulate kerning
\hspace #-.7
\fontsize #1 \lower #1.2 \rotate #-10 "/"
\hspace #-.1
}
chordNoteNamer = #lower-extension
}
}
\score {
\new StaffGroup <<
\chords {
f2.:m c4:7/e c2:maj7
}
\new Staff { \key aes \major \time 3/4 c'4 aes'2 c'4 bes'2 }
>>
\layout { }
}
%%%%%%%%%%%%%%
Does that do what you want? I couldn’t test it with the actual font, of
course, only with LilyPond’s default Sans font. So you’ll likely have to
adjust the numerical values in lines 6 and 27–29 to taste. See
<http://lilypond.org/doc/v2.18/Documentation/notation/text-markup-commands>
for documentation on the markup commands (you can also look them up in
the index, section D of the Notation Reference).
You can fitfully use the \layout {} block in a stylesheet (i.e., a
separate .ily file to \include everywhere you want this kind of chord
names display).
HTH, Simon
On 20.11.2015 22:04, Luca Fascione wrote:
Actually, sorry for not thinking about this before, but writing it in
LaTeX gave me an idea to illustrate what I'd like to achieve (roughly).
%%%%%%%%%%%%%%%%%%%%%%%%%%
\version "2.18.2"
% test for setting slash chords with realbookchords font
chExceptionMusic = {
<c e g bes>1-\markup { "7" }
<c e g b>1-\markup { "<7/" \raise #-2.5 "B" } % for illustration
purposes only
<c ees g>1-\markup { ">" }
}
chExceptions = #( append
( sequential-music-to-chord-exceptions chExceptionMusic #t)
ignatzekExceptions)
\score {
\new StaffGroup <<
\chords {
\override Score.ChordName #'font-name = #"New Real Book Chords"
\set chordNameExceptions = #chExceptions
\set slashChordSeparator = "/"
f2.:m c4:7/e c2:maj7
}
\new Staff { \key aes \major \time 3/4 c'4 aes'2 c'4 bes'2 }
>>
\layout {}
}
%%%%%%%%%%%%%%%%%%%%%%%%%%
You can see I have hardcoded the form of Cmaj7 to render as Cmaj7/B,
but the spacing feels like a step in the right direction (admittedly
the kerning could use work, but it feels like a reasonable compromise)
I have attached the corresponding pdf I get, so you can see what I mean
Thanks,
Luca
On Sat, Nov 21, 2015 at 9:27 AM, Luca Fascione <l.fasci...@gmail.com
<mailto:l.fasci...@gmail.com>> wrote:
Thanks Simon!
I'm also attaching the small GIF from the other website for reference,
and the result I presently get from 2.18.2.
It seems this question has come up a long time ago but I couldn't
find a definitive resolution to it.
As I was saying, I am happy to contribute time to the coding if it
helps, but I could certainly use a bit of guidance as to where to
start.
Things are never this simple, but in LaTeX-speak it seems to me
all it's needed is to wrap the bass note in something more or less
like \raisebox{-1ex}{E} (and maybe mess a bit with the kerning of
the slash, hard to say without trying it out).
I've tried to look in the source (for 2.18.2) and I found that in
chord-ignatzek-names.scm, around line 210, it calls a routine
names make-line-markup, which might be near where the modification
needs to happen. But I have no idea how to override the behaviour
of that piece of code from my source file.
Thanks for your help
Luca
On Fri, Nov 20, 2015 at 11:36 PM, Simon Albrecht
<simon.albre...@mail.de <mailto:simon.albre...@mail.de>> wrote:
On 20.11.2015 10:56, Urs Liska wrote:
Dear Luca,
this is a question you should ask on the lilypond-user
mailing list.
I have forwarded it there but I strongly suggest you
subscribe at
https://lists.gnu.org/mailman/listinfo/lilypond-user to
automatically receive any replies.
Best
Urs
Am 20.11.2015 um 10:46 schrieb LilyPond blog contact form:
/From:/ Luca Fascione
/Message:/
Hello,
I've been using lilypond for a little while now and I
rather like it.
I've been able to achieve most of what I want for my
engraving needs, but I think I need some help to set
up slash chords like in this example
http://www.apianotuner.com/img/RealBookSample.gif
I'm using the font "New Real Book Chords"
distributed here https://musescore.org/node/7785, and
I have setup exceptions to the Ignatzek rules to drive
the font correctly, but I can't find a way to tell
lilypond that the bass note should be set lowered
(like in the gif above).
I have put a small repro case at the bottom of this
message
Any help or indication you could spare would be
greatly appreciated (I am a fairly accomplished
software engineer and I'm not afraid of writing code
to achieve this, although I have to confess I am a C++
guy, not a Guile/Scheme guy).
Thanks very much
Luca Fascione
------------------------
example.ly <http://example.ly>
Too bad the code got messed up. Here is a (hopefully) clean
version:
%%%%%%%%%%
\version "2.18.2"
% test for setting slash chords with realbookchords font
chExceptionMusic = {
<c e g bes>1-\markup { "7" }
<c ees g>1-\markup { ">" }
}
chExceptions = #(append
(sequential-music-to-chord-exceptions chExceptionMusic #t)
ignatzekExceptions)
\score {
\new StaffGroup <<
\chords {
\override Score.ChordName.font-name = #"New Real Book
Chords"
\set chordNameExceptions = #chExceptions
\set slashChordSeparator = "/"
f2.:m c:7/e
}
\new Staff { \key aes \major \time 3/4 c'4 aes'2 c'4 bes'2 }
>>
\layout {}
}
%%%%%%%%%%%%%
and once attached, just in case.
Yours, Simon
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