Conventional operatic legend has it that by 1969 Gwyneth Jones voice was supposed to be in decline. Her vibrato had grown wider and her voice tended to go out of control. Her official recordings at this time seem to bear this out. But in this Tosca from Zurich we hear that conventional wisdom was wrong. Her voice is steady and sure throughout the performance, she sings a melting "Vissi d'arte", and her dramatic instincts are as keen as ever (her cries of "Muori!" in the murder scene are ferocious). Tosca was always a good fit for her as any of Opera Depot's recordings with her will show. John Stewart was a fine tenor who never lacked for work, but who (like many singers) didn't have a recording career. His beautiful voice with its strong top notes is heard to great advantage here as is Morley Meredith's excellent baritone. Meredith is well known from his many Met appearances though he too didn't get to make many, if any, studio recordings. I wish the entire cast list had been provided, the Sacristan and Spoletta are particularly good. Santi leads an exciting performance that threatens to come unglued a few times in the second act.This sounds like it was derived from a broadcast source as the voices are very clearly heard over the orchestra. The performance begins just before "Recondita armonia", the third act just before the jailor's first line "Mario Cavaradossi? A voi."The filler arias with Jones are splendid and show her off to the best advantage.