Johannes has already sung with such important conductors as Kirill Petrenko, Bertrand de Billy, Oksana Lyniv, Andrea Battistoni, Asher Fisch, Marco Armiliato, Constantin Trinks, Ivor Bolton, Simone Young or Cornelius Meister, Gustavo Dudamel, Thomas Hengelbrock, Sir Simon Rattle, Sir Mark Elder, Marin Alsop, HK Gruber and Bernard Labadie. He has previously worked with orchestras such as the Los Angeles Philharmonic Orchestra, the NDR Elbphilharmonie Orchestra, the Berlin Philharmonic, the London Symphony Orchestra and the Orquesta Sinfónica Simón Bolívar de Venezuela, which have taken him to London, Berlin, Hamburg, Baden-Baden, Porto, Moscow, Caracas and Los Angeles already.

Johannes Kammler is also very active and successful with singing Lieder. For example, in October 2016 he was invited to the renowned Oxford Lieder Festival for a recital with Roger Vignoles, with whom he has since been engaged repeatedly for recitals across Europe; e.g. also at Wigmore Hall in London, De Doelen in Rotterdam, in Schloss Elmau or at the Beethoven Fest Bonn. Now he also sings song recitals together with his wife, the soprano Anna El-Khashem. Born in Augsburg, the artist received his first musical training from the Augsburg Cathedral Choir. Later he studied singing a. a. in Freiburg im Breisgau, Toronto and at the Guildhall in London. Johannes Kammler was a finalist and winner of the international singing competitions NEUE STIMMEN and OPERALIA.