Complex sentence: From 1959 he was a guest conductor of the Orchestre de la Suisse Romande and the Lausanne Chamber Orchestra, following which he was the conductor for Radio Zurich until 1967 when he took over the Bern Symphony Orchestra from Paul Kletzki where he stayed for eleven years.
Split into simpler sentences: From 1959 he was a guest conductor of the Orchestre de la Suisse Romande and the Lausanne Chamber Orchestra. After this, he was the conductor for Radio Zurich until 1967, when he took over the Bern Symphony Orchestra from Paul Kletzki, where he stayed for eleven years.