Τα 4 Επίπεδα Της Ύπαρξης

Ta 4 Epipeda Tis Yparxis (translation: "The 4 Levels Of Existence") was a Greek psychedelic/hard rock group, that formed in 1974 in Athens, by Thanasis Alatas, Marios Giamalakis, Nikos Dounavis and Christos Vlahakis. Alatas and Vlahakis had previously played together in a band called "Frog’s Eye". In 1975, Dounavis was replaced by Nikos Grapsas. The band originally released only one self-titled album in 1976 on an "Omonoia Sound"-related label called "Venus". They soon disbanded as most members had to attend their 2-year mandatory military service.