Lars "Erik" Westberg (born 1 September 1956 in Stockholm) is a Swedish conductor and professor in music performance. He studied choral conducting with Professor Eric Ericson at the Royal College of Music, Stockholm 1976–1987. Biography. Westberg has been the leader of numerous choirs, including the YMCA choir in Stockholm and the Oslo Philharmonic choir. https://en.wikipedia.org/wiki/Erik_Westberg