Since Glenn Gould's death in 1982 there has been a stream of films and documentaries about the great pianist, constantly recycling the archives of Gould's own TV programmes and the precious filmed performances. The latest comes from Bruno Monsaingeon, who has made some acclaimed films about other performers (notably Sviatloslav Richter) and who worked with Gould towards the end of his life. Monsaingeon's Hereafter stitches together a range of archive clips with present-day interviews with Gould fans and admirers, as well as some scripted interludes. None of that adds much to our appreciation of one of the most extraordinary artists of the 20th century, but any chance to see Gould in interview and performance is always compelling. The extracts range across his repertory, from Orlando Gibbons to Hindemith and Schoenberg, and include several of his own compositions, one of which is a rather impressive string quartet. Gould's own observations are as articulate as his piano playing, and both leave indelible memories.