Graduated with honours the Warsaw Music Academy under Prof. Bogusław Madey and at the Cologne College of Music and attended master classes with Witold Rowicki in Vienna.
In the course of his musical career, he was Conductor at the Great Theatre in Warsaw (1971 – 1978) and at the Poznan Philharmonic (1974 - 1980), where he also became the Artistic Director (1978 - 1980). In 1978 – 1981he was the first Conductor of the Theater der Stadt Bonn and of the Orchestra of the Beethoven Halle.
In 1982 he fixed his live with the Tricity, he founded the Polish Chamber Philharmonic Sopot.
In 1993 he started also to teach as a professor in The Hochschule für Musik w Karlsruhe, and he became Professor of Conducting an Orchestra Training at the Academy of Music and Performing Arts in Frankfurt am Main until now.
Since 2008 he also teaches conducting at the Music Academy of Gdansk.
In years 1993-2006 he was the Artistic Director of the Polish Radio Orchestra in Warsaw. With this orchestra he took concerts in Poland and abroad and recorded for Polish Radio. He also took part at many festivals i.e. Prague Spring, Flandreau Festival, Gran Canaria Festival, Festspiele Europäische Wochen Passau, Schleswig-Holstein Music Festival, Evian, Montpellier, La Chaise Dieu, Gdańsk Music Festiwal.
Wojciech Rajski has in his phonographic work over 60 Cds for such recorders as: EMI, Chant du Monde, Claves, Thorofon, Tacet, Midas, Bis Wifon, KOCH, DUX and many others. It takes also recordings for Polish Radio and TV, also for German SAT 1, 3 SAT and ARD.