Brian Clarke’s Tune in, Turn on, Drop out is a stained glass folding screen, its title drawing on a 1960s counterculture slogan. This sentence, first popularised by the writer and advocate of psychedelic drugs Timothy Leary, encouraged people to embrace cultural changes by detaching from traditional social conventions and hierarchies.

In this autonomous work, glass is liberated from its dependence on lead and is able to radiate light and colour three-dimensionally. Tune in, Turn on, Drop out exists in an edition of 10 unique variants plus 3 artist's proofs, published by HENI.