Markus Theinert was born 1964 in Weingarten (South Germany). Growing up in a very musical family he took his first piano and singing lessons at the age of 7 from Mrs. Preissler in Ravensburg (who herself had been a student of the famous tenor Karl Erb). Encouraged by his older sisters and brothers (four of them being professional musicians) Markus Theinert intensified his musical activities adding instrumental lessons on double bass, tuba, trombone, euphonium and church organ to his vocal studies. It soon became clear, that he would follow his sisters and brothers taking a professional career.

In 1984 he began his studies in Berlin (piano, composition and tuba). Private studies with John Fletcher (London Symphony Orchestra) had given him sufficient motivation to concentrate on tuba as his main orchestral instrument since. Markus Theinert played as substitute tuba player in all Berlin orchestras including the Philharmonic, Radio Symphony and German Opera Orchestra.

In 1987 he was elected as principle tuba of the Schleswig Holstein Festival Orchestra under Leonard Bernstein and Sergiu Celibidaché. It was there, when Maestro Celibidaché discovered the young Berlin student and seriously encouraged him to conduct and invited him into his masterclasses in Paris, Mainz and Munich. It was in December 1987 after his conducting debut in Hamburg (the very successful world première of the Musical “Der Bunker” by Oliver Probst) when Markus Theinert had the first conducting lessons with Celibidaché. During a period of 9 years these intensive studies with the late Maestro were the most influencing and forming events in the life and musical education of Markus Theinert.

While his career as a brilliant tuba player went on (he became member of the orchestra academy of the Berlin Philharmonic Orchestra in 1990, the same year he joined the Brandenburg Quintet Berlin), he increased his activities as conductor more and more. 1992 he became chief conductor of the Brandenburg Chamber Orchestra Berlin, a position he held until 1997. His appearances as guest conductor took him to Japan (Toyama Orchestra Academy), Mexico (Orquesta Sinfonica di Mineria), Great Britain (Leyland Brass Band), Italy (Lanciano Festival Orchestra) and to the United States (Hartwick College Summer Music Festival). A spotlight in his young career was a splendid concert at the Berlin Philharmonic Hall with the Beaux Arts Trio and the RIAS- Symphony Orchestra (1995). He also worked as assistant of Hans Werner Henze, Victor Liberman and Osmö Vanska. In 1993 the Toho Gakuen School of Music in Tokyo offered him a post as visiting professor, a position he still fulfills today.

Beside his performances as both tuba soloist and conductor of symphony orchestras, wind bands and choirs all over the world Markus Theinert is regularly invited as adjudicator of international competitions and teacher at international masterclasses and clinics. Since 1997 Markus Theinert took the post of chief conductor of the Orchestra of the Bavarian State Police in Munich.