Parallel to his work on the opera stage he is much sought-after as a concert singer, having performed already with the greatest orchestras and conductors: Berlin Philharmonic, Chicago Symphony Orchestra, Cleveland Orchestra, Houston Symphony, Israel Philharmonic Orchestra, Munich Philharmonic under Claudio Abbado, Daniel Barenboim, Pierre Boulez, Fabio Luisi, Zubin Mehta, Christian Thielemann, Kent Nagano, and many others.

Over the past 10 years, Roman Trekel has proven himself to be one of the excellent Lied interpreters of his generation.  This has been backed up not only by his many song-recitals worldwide, but also by his prize-winning discography.  Beside working with his accompanist of over 20 years, Oliver Pohl, Roman Trekel has also worked with – among others –  Burkhard Kehring, Hartmut Höll, Malcolm Martineau, Hideyo Harda, Elena Bashkirova, Helmut Deutsch and Daniel Barenboim.

For more than two decades, Roman Trekel has been teaching voice at the Hanns Eisler Conservatory in Berlin.  He gives master classes and is invited regularly to be a jury-member for international competitions.