Born in 1992, Constantin Hartwig was given his first tuba lessons at the age of 13 by his father, Rainer Hartwig. A year later he began studying with Ralf Rudolph, completing his program of study as a junior student at the University of Music Saar with him. He pursued further studies at the Hanover University of Music, Drama and Media with Jens Bjørn-Larsen.
In 2016, Constantin Hartwig was not only prizewinner of the German Music Competition but also the Aeolus International Competition for Wind Instruments. Shortly afterwards, his debut CD Klischee ade was released on GENUIN. Since then, Hartwig has appeared throughout Germany in solo recitals with his accompanist, Maria Lebed, or with orchestras such as the SWR Symphony Orchestra, the Beethoven Orchestra Bonn, the Düsseldorfer Symphoniker and the Krakow Philharmonic Orchestra.
Since 2022 he is solo-tubist of the Sächsische Staatskapelle Dresden, after having academy posts at the Bavarian State Opera, the Staatskapelle Dresden and a temporary position with the Dortmunder Philharmoniker. As orchestra musician he has performed with, among others, the orchestras of German broadcasters HR, WDR, BR, and RBB and at the opera houses in Munich, Berlin, Hamburg, Frankfurt, and Dusseldorf.
Constantin Hartwig has received scholarships from the German Music Competition, the Dieter Kissel and Jürgen Ponto Foundations, Villa Musica Rheinland-Pfalz, the German National Academic Foundation and Zukunftsinitiative Rheinland-Pfalz.
In addition to performing with Trio 21meter60, Constantin Hartwig is an avid performer of chamber music and appears in recital with the LJO-Brass quintet or as a regular guest with German Brass, the Ludwig Güttler Brass Ensemble and Salaputia Brass. He also enjoys devoting any remaining time he has to arranging works for various combinations of brass instruments.