The group has gone through many lineup changes, but the two core members remained: guitarist Yannis Spathas and bassist/singer Antonis Tourkogiorgis.

Yannis Spathas favored two sunburst Fender Stratocasters, a Candy Apple Red Roland GR-505 guitar synthesizer, a black Gibson Les Paul Custom and a cherry sunburst Les Paul Standard.

In 1975, Socrates went through a change in stylistic direction with Phos, which featured Vangelis' production and contributions on many tracks.

Both LPs On the Wings and Phos were issued in the USA via Neil Kempfer-Stocker's Prog imprint Cosmos.

This material was salvaged and released in September 2023 under the title Last Forever (Neradou) by EMI/Universal, mixed by Kostas Bigalis.