Principal Guest Conductor of the Netherlands Radio Symphony Orchestra, Artistic Director of  the Tampere Philharmonic in Finland and the Tallinn Philharmonic in Estonia. Born on 28 June 1939 in Tallinn, Eri Klas began his conducting studies at the Tallinn Conservatory and upon graduation went to St. Petersburg (then Leningrad) to work with Nikolai Rabinovich. He made his debut at the Estonian National Theatre in Tallinn in 1964. He was named Music Director in 1975 of the Estonian National Theatre and has since become conductor laureate. Between 1985 and 1990, he was Music Director of the Royal Opera in Stockholm. From 1991-1996 he was principal conductor of Aarhus Symphony Orchestra, Denmark.