Hi, as others said, font-name overwrites all of font-family, font-series and font-shape. You can set the font family like this:
\version "2.19.84"
\paper {
% define a font ‘arial’ from the font called ‘Arial’
#(add-pango-fonts fonts 'arial "Arial"
(/ (* staff-height pt) 2.5))
}
% use the font family ‘arial’ in your markup or header markup
\markup \override #'(font-family . arial) \line {
\bold "Bold" \italic "italic" "regular"
}
HTH
Joram
