wrote a code of conduct that was supposed to apply during the orchestra's practice sessions. Kielland was considered a temperamental and colorful character and several anecdotes survive from members who served under his command. The German players of the ISO are said to have received a particularly harsh treatment from Kielland. Nevertheless, Kielland's arrival was generally acclaimed in the papers and seen as clear step forward for the young orchestra. Kielland's three-year contract expired in 1955 and was not renewed. After his departure from the ISO, no principal conductor was employed on a permanent basis until 1965. Bohdan Wodiczko (1965–1968, 1970–1971) Wodiczko first conducted a concert of the ISO on 22 February 1960 when Chopin's 150th anniversary was celebrated. The collaboration was fruitful and Wodiczko conducted ten more concerts during the following season. In 1965 he signed a three-year contract as principal conductor. Wodiczko had a reputation as a recluse who confined his social life in Iceland to the company of orchestra members. During his stay in Iceland, Wodiczko was greatly motivated by his ambition to enhance the local cultural scene; in a 1961 interview he stated that his monthly salary with the ISO roughly equalled the amount they would receive for a single concert in Europe. The ISO's repertoire underwent considerable changes during Wodiczko's time in office, moving enhancingly towards modern music instead of classical and romantic compositions. Karsten Andersen (1973–1978) Andersen first conducted a concert of the ISO on 9 June 1972 as part of the Reykjavik Arts Festival when held for the second time. His conservative taste in music resulted in a highly conventional repertoire and little risk-taking. Andersen held office as principal conductor of the Bergen Philharmonic Orchestra while working with the ISO and traveled frequently between Norway and Iceland, spending on average one week every month in Iceland. Andersen's time in office marks the ISO's unbroken period of principal conductors. Jean-Pierre Jacquillat (1978–1986) Jacquillat introduced French impressionistic compositions in the ISO's repertoire in a greater degree than any of his predecessors. When asked in a 1986 interview whether he considered himself to have acquired anything positive as principal conductor, Jacquillat replied: "It is up to others to judge. In any case, I can boast of having introduced a lot of French music to Icelandic listeners. There are several French composers I would have liked to play here, like Boulez and Messiaen, but the orchestra is