''One glance at Schubert's trio, and the miserable hustle and bustle of human existence vanishes,'' wrote Robert Schumann in 1836 in praise of the Piano Trio D898. He was equally admiring of the Viennese composer's Piano Trio D929, most notably its funeral march-like Andante con moto, later to achieve cinematic fame in Stanley Kubrick's Barry Lyndon. Peerless interpreters Andreas Staier, Daniel Sepec and Roel Dieltiens bring out every nuance of these endlessly fascinating works on their period instruments, which include a splendid copy of an 1827 Viennese fortepiano.