Johan Tallgren, born in Helsinki in 1971, studied composition at the Sibelius Academy with Paavo Heininen, from 1991 to 1996. After that he studied composition in Paris with Kaija Saariaho, and orchestration with Marc-André Dalbavie. Currently he is studying with Brian Ferneyhough, Roger Reynolds and Chinary Ung at University of California for a master in Music. He has attended master courses held by Magnus Lindberg, Anders Hillborg, Jouni Kaipainen and York Holler in Finland, and in France with Gérard Grisey, Klaus Huber and Sir Harrison Birtwistle.
Tallgren's music has been performed during the Helsinki Biennale, Tampere Biennale, Ars Musica (Brussels), Youth Nordic Music festivals in Sweden, Denmark and Iceland, and has been played by Ensemble Recherche, Ensemble Caput, Zagros-ensemble, Avanti!-musicians and Kerberos. His piece Asteria represented Finland in UNESCOs Rostrum in Paris in 1997. He was in 1995-96 the chairman of the "Korvat auki" (Ears Open) organisation for young composers in Helsinki, and has since 1990 written music reviews on a freelance-basis for different newspapers and music magazines in Finland.