Seismic diagram of the Kepler data, with T_eff derived from the APOKASC survey and 1/ν_max used as a proxy for the luminosity. Stars identified on the RGB from the η parameter are shown in blue; stars identified as clump stars or on the AGB are plotted in red. Evolved low-mass stars are indicated with squares. The right panel shows the histogram of the stellar distribution as a function of ν_max.