/usr/share/lilypond/2.16.2/fonts/source/feta-dots.mf is in lilypond-data 2.16.2-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | % Feta (not the Font-En-Tja) music font -- a duration dot
% This file is part of LilyPond, the GNU music typesetter.
%
% Copyright (C) 1997--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
%
% LilyPond is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% LilyPond is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
fet_begingroup ("dots");
save dot_diam;
2 dot_diam# = staff_space# - stafflinethickness#;
define_whole_blacker_pixels (dot_diam);
fet_beginchar ("duration dot", "dot");
pickup pencircle scaled dot_diam;
lft x0 = 0;
top y0 = vround (.5 dot_diam);
drawdot z0;
set_char_box (0, dot_diam#, .5 dot_diam#, .5 dot_diam#);
fet_endchar;
fet_endgroup ("dots");
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