It’s almost exactly 12 months since violinist Susie Park and cellist Timo-Veikko Valve joined pianist Kathryn Selby to present their outstanding Three Stages of Man concert at Elder Hall, which featured piano trios by Brahms, Ravel and Rachmaninov. Park and Valve again joined Selby for this concert, featuring three Beethoven piano trios, which they’ve aptly titled Triple Treat, although the title could also have been The Three Stages of Beethoven since the concert illuminates Beethoven’s exploration of the trio form. But while this immersive program explores all the moods, colours and textures of the piano trio as espoused by the great composer, only one of the three works was initially intended as a trio for piano, violin and cello.