[1] He received early violin instructions from his father, and took lessons in piano, organ, clarinet and composition from age six.

After completing his Abitur he studied composition and conducting at the Musikhochschule München with Jan Müller-Wieland, then at the Conservatoire de Paris with Frédéric Durieux, at the Robert Schumann Hochschule Düsseldorf with Rüdiger Bohn and Manfred Trojahn, and at the Juilliard School in New York City with Alan Gilbert.

[2] In 2015 he became assisting conductor of the Ensemble intercontemporain, making his debut with them at the Philharmonie de Paris in 2016.

[4] Mayrhofer has performed with his brother Raphael as the jazz duo Imbrothersation; they were awarded the Tassilo-Preis [de] of the Süddeutsche Zeitung.

[5] In 2023 Mayrhofer was awarded the Opus Klassik in the categories Composer of the Year, "Newcomer of the Year" as conductor; in addition, his Recycling Concerto was nominated for the innovation prize for sustainability, as well as for the categories videoclip, support of young artists (Nachwuchsförderung) and innovative concert.