Upper panel: distribution of our sample of stars as a function of Δν, with red giants in blue and He-burning stars in red. Stars with unidentified or uncertain evolutionary stage are plotted in grey. The inset is a zoom-in portion of the large panel. Lower panel: seismic diagram of our sample of stars with the same colour code as in the upper panel, where 1/ν_max is a proxy for the luminosity. The solid black line is the evolutionary track of a 1 M_⊙ model computed with MESA, using the 1M_pre_ms_to_wd test suite case. Some key events are highlighted: the RGB bump (RGB-b), the luminosity tip of the RGB (RGB-tip), and the AGB bump (AGB-b).