In building the organ for Zurich's Grossmünster in 1960, the firm of Metzler Orgelbau set a benchmark. Every well known organist wanted to play on this instrument. Hans Vollenweider, organist at the Grossmünster from 1970 to 1986, recorded the works of Bach over several years. The unique musicality and masterly technique of Vollenweider's interpretations are delightful. The spontaneity, immediacy and vividness of his recordings, available for the first time in this format, remain compelling. The present release features J.S. Bach's 5 Triosonaten.