matthiasm@8: function np = nullpart(parts, barlines)
matthiasm@8: nullindices = ones(size(barlines));
matthiasm@8: for iPart = 1:length(parts)
matthiasm@8:     for iIndex = 1:length(parts(iPart).indices)
matthiasm@8:         nullindices(parts(iPart).indices(iIndex)+(0:parts(iPart).n-1)) = 0;
matthiasm@8:     end
matthiasm@8: end
matthiasm@8: np.n = 1;
matthiasm@8: np.indices = find(nullindices);
matthiasm@8: np.letter = '-';
matthiasm@8: np.level = 0;