Complex sentence: Rudolf Jansen (born January 19,1940 in Arnhem, Gelderland) is a Dutch pianist, who studied piano, organ and harpsichord simultaneously at the Amsterdam Conservatoire (now the Sweelinck Conservatoire).
Split into simpler sentences: Rudolf Jansen (born January 19,1940) is a Dutch pianist. He studied piano, organ and harpsichord simultaneously at the Amsterdam Conservatoire (now the Sweelinck Conservatoire).