Re: Status of lilypond for jazz charts?

[Kieren MacMillan]

Hi Iain,

> I am trying to change some chord symbols.

Your code doesn't work because, although you correctly create the  
exception list, you never explicitly \set it into the correct place  
-- here's a corrected (and slightly modified, for instructional  
purposes) example:

\version "2.10.10"
\include "english.ly"

\header
{
    title = "Song Title"
}

% write out all custom exceptions here:
customChordExceptions =
{
    <c ef g>-\markup { "-" }
        <c e g bf>-\markup { "7" }
        <c e gf b>-\markup { \fontsize #1 "ø" }
}

% add custom exceptions to existing exceptions:
newChordExceptionList = #(append
    (sequential-music-to-chord-exceptions customChordExceptions #t)
    ignatzekExceptions)

melody = \relative c'
{
   \clef treble \key c \major \time 4/4
   \repeat "unfold" 2 { f4 e8[ c] d4 g | a1 }
}

harmonies = \chordmode
{
        % default
        c2:m f2:min7 c2:7 ef:maj7.5-

        % override with custom list
        \set chordNameExceptions = #newChordExceptionList
        c2:m f2:min7 c2:7 ef:maj7.5-
}

\score
{
        <<
                \new ChordNames { \set chordChanges = ##t \harmonies }
                \new Staff \melody
        >>
}

> I'm also specifically interested in getting a large size 0 with slash
> for half-diminished ( m7b5) and a - for minor instead of m.

I believe that's in there...  =)
You can play around with the particular \markup code, as desired.

Hope this helps,
Kieren.