[2][citation needed] In February 2005, Siirala gave a debut recital at the Cologne Philharmonie.
[citation needed] He performed with the WDR Sinfonieorchester Köln under Semyon Bychkov and the City of Birmingham Symphony Orchestra during the 2009-2010 season.
[citation needed] In October 2009, Antti Siirala debuted with the San Francisco Symphony Orchestra under Osmo Vänskä.
[citation needed] His recordings of Schubert and Brahms transcriptions both received the Gramophone Magazine's Editor's Choice award.
[citation needed] Beethoven and Brahms are at the core of Siirala's repertoire, but his interest in contemporary music has resulted in first performances of works by Walter Gieseler, Kuldar Sink, Uljas Pulkkis, and the premiere of the new piano concerto by Kalevi Aho.