The star KIC-3890 is such a binary system. It contains a red giant and an M-dwarf star in a highly eccentric, 153-day orbit, and Kepler observed it nearly continuously for nearly four years. CfA astronomers Allyson Bieryla and Dave Latham were members of a team that analyzed its heartbeat and oscillations with a new set of synthetic models. 

https://phys.org/news/2019-09-stellar-oscillations-kepler.html