I am trying to use Lilypond to generate (guitar) chord diagrams.
\include "lilypond-book-preamble.ly"
\version "2.16.2"
\markup {
\vspace #1
\sans
\abs-fontsize #8
C
}
\markup {
\fret-diagram-terse #"x;3;2;o;1;o;"
}
Unfortunately the generated PNG is pretty small, just 121*133 px:
Can someone tell me how to make them like 500 px high?