He studied voice with Hans-Joachim Beyer at the Hochschule für Musik und Theater "Felix Mendelssohn Bartholdy" Leipzig and with Elisabeth Schwarzkopf.
He appeared as a guest at theatres such as the Teatro alla Scala, the Semperoper, Théâtre des Champs-Élysées, Paris and the opera houses of Lausanne, Cologne, Nancy, Leipzig, Wiesbaden, La Coruna and others.
In 2005, he appeared with La Petite Bande in a concert of Bach cantatas at the Rheingau Musik Festival in the Eibingen Abbey, together with Siri Thornhill, Petra Noskaiová and Jan van der Crabben.
He performed the Mass in B minor also with the Gewandhausorchester Leipzig, conducted by both Herbert Blomstedt and Georg Christoph Biller.
From 2017 - 2022 Genz was working as Head of Arts Department, Music teacher and Dean of Faculty at UWC Changshu in China, which is part of the group of United World Colleges.