In 1976, Tadeusz Wojciechowski started his co-operation with the Grand Theater in Warsaw, which lasted until 1983. In 1982 he was invited to lead the Danish Royal Academy in Copenhagen, where he served as principal conductor from 1983 to 1996, and still continues his co-operation with it.
He appeared in such prestigious opera theaters as the Metropolitan Opera, New York, Teatro La Fenice, Venice, Teatro Carlo Felice, Genoa, the Royal Opera, Stockholm and the Royal Opera, Oslo.
In 1994 he was appointed director of the Polish Radio Orchestra and Chorus, and served in this post up to the ensemble’s disbandment. Then he became director of the Grand Theater in Warsaw, where he served to 1996. From 1998 to 2004, he was artistic director of the Music Festival in Łańcut and also of the Rzeszów Philharmonic. In 2002 he became the chief- conductor of the Symphony Orchestra of the Ignacy Jan Paderewski Pomerania Philharmonic. Apart from that, he co-operates with almost all symphony orchestras in Poland. Furthermore, he is first guest conductor of the Latvian National Opera in Riga and also collaborates with Theater am Gearner Platz in Munich on a regular basis. In the years 2005–2008 he was the Artistic Director of Łódź Philharmonic.