Octavio Paz’s masterwork Piedra de sol defies easy description; drawing on Aztec symbolism and a heady dose of surrealism, it broadly traces an emotional U-shape – from creation to the depths of despair, and finally to a form of salvation. Craig Hella Johnson and chamber choir Conspirare are on absolutely top form in this choral tour de force, which has to be heard to be believed. Anyone who was blown away by Talbot’s Path of Miracles will not want to miss this