fret diagrams

[Patrick Schmidt]

Hi all,

I'm desperately trying to typeset a simple C major fret diagram (guitar: first 
position). Here's my minimal example:

\version "2.12.2"
\include "predefined-guitar-fretboards.ly"

mychords = \chordmode {
  c
  }
  
{  
 <<
        \context ChordNames {
                \mychords
        }
        \context FretBoards {
                \mychords
        }
 >>
}

The resulting diagram shows a c major chord in fifth position instead of first 
position (of the guitar). It probably doesn't work because I can't find the 
file »predefined-guitar-fretboards.ly« neither on my computer nor on the web. 
It's the same result with or without the \include-command. Where do I get this 
file from? If I have to create it myself: what is it supposed to look like? I 
didn't find any hints in the docs.

Thank you for your help!

Patrick
 

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cmajor.pdf
Description: Adobe PDF document