The Sinfonieorchester Basel is one of Switzerland's oldest and most innovative orchestras. With strong roots in northwestern Switzerland, it has an impressive nationwide and international reputation. In its own series of concerts, at Theater Basel and on tour in Switzerland and abroad, it never fails to demonstrate its refined, sophisticated sound quality. The renowned American conductor and pianist Dennis Russell Davies headed the orchestra as its principal conductor from 2009-2016. British-born Ivor Bolton has been designated as principal conductor from the 2016/17 concert season, while the first guest conductor is Michał Nesterowicz from Poland.