Upper panel: stellar masses of 26 giant stars that were determined from evolutionary tracks using our Bayesian methodology compared to asteroseismic reference masses. The black solid line marks the line of equality. Lower panel: difference of both masses as a function of the asteroseismic reference mass. Errors of the asteroseismic masses are not plotted for clarity in the lower panel, but are indicated in the upper panel. The blue solid line in the lower panel is a linear fit, where the errors in the asteroseismic masses have been taken fully into account. The blue dashed lines indicate the 95% confidence band.