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Re: 13th chord?


From: Flaming Hakama by Elaine
Subject: Re: 13th chord?
Date: Mon, 27 Feb 2017 17:12:26 -0800



When  I enter a 13th chord like this e:13, it renders with a 9 as well.  I know a 13 chord officially contains the 9 and 11, and that lilypond by convention will omit the 11.  But I don't really want to have the 9 showing.  Do I inadvertently have some setting on that is giving me this?
Inline image 1

Amidst all the confusion and alternative approach debate, it seems like no one has provided the standard answer for how to do this.
More details and explanation are at my blog post on this topic:
http://flaminghakama.com/flaming-lilypond-chords

Here's the general way to specify the chord symbols you’d like to use:

1. Define your chord exceptions (the chord patterns for which you want to change the chord symbols;  in your case, the dominant 13 chord)
2. Append your exceptions to ignatzekExceptions to the exceptions list
3. When entering chords in \chordmode, set the chordNameExceptions to your chord exceptions list

\version "2.19.15"

myChordExceptions = {
    % Dominant 13 chord
    <c e g bes d' a'>1-\markup { \raise #1.0 { \small 13 }  }
}
chExceptions = #(append (sequential-music-to-chord-exceptions myChordExceptions #t) ignatzekExceptions)

originalChordSequence = \chordmode {
  \set chordChanges = ##t
  c1:13
}

myChordSequence = \chordmode {
  \set chordChanges = ##t
  \set chordNameExceptions = #chExceptions
  c1:13
}

myMelody = \relative c'' {
    a8 ( bes a2. )
}

\score {
  \new StaffGroup <<
    \new ChordNames \originalChordSequence
    \new Staff {
      \myMelody
    }
  >>
}

\score {
  \new StaffGroup <<
    \new ChordNames \myChordSequence
    \new Staff {
      \myMelody
    }
  >>
}



HTH,

David Elaine Alt
415 . 341 .4954                                           "Confusion is highly underrated"
address@hidden
self-immolation.info
skype: flaming_hakama
Producer ~ Composer ~ Instrumentalist
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