He has appeared in Europe, including as Rossini's Figaro, Harlekin in Ariadne auf Naxos by Richard Strauss, and Papageno in Mozart's Die Zauberflöte, at the Glyndebourne Festival.

[1] He obtained there the Abitur in 2005 and began first a study in the drama department of the Hochschule für Musik und Darstellende Kunst Frankfurt am Main.

In addition to his piano training, he also took singing lessons with Gottfried Kärner, the leader of the Polyhymnia pop choir in his hometown, in which Bürger also sang.

[2] From 2007 to 2013 Bürger studied opera singing at the Hochschule für Musik und Darstellende Kunst Frankfurt am Main in the class of Hedwig Fassbender.

He also appeared in the lead role of Victor Hugo in the world premiere of Paul Leonard Schäffer's operetta Eine Kapitulation to a libretto by Richard Wagner at the Festival junger Künstler Bayreuth [de].

[8] With the 2019(20 season Bürger joined the ensemble of the Staatsoper Stuttgart, where he performed roles such as Posa in Verdi's Don Carlo, Belcore in Donizetti's L'elisir d'amore, Dr. Falke in Die Fledermaus bei Johann strauss, Count Almaviva in Mozart's Le nozze di Figaro, the title role of Don Giovanni, and Bill in Weill's Aufstieg und Fall der Stadt Mahagonny.