The young Madegasse studied at the Royal Academy of Music in London and completed his bachelor’s degree with distinction and his master’s degree at the Franz Liszt Academy of Music in Weimar. During his studies, he received a number of scholarships, including the John Talbot Collender Prize (a full scholarship at the Royal Academy of Music), the Deutschlandstipendium and the Charlotte Krupp Scholarship.
In 2021, he represented his home country at the prestigious “Singer of the World” competition in Cardiff and was among the finalists in the song category. In the same year he also won third prize at the Helmut Deutsch Competition.
He would also have been a participant in the Salzburg Festival’s Young Singer’s Program in 2020, which did not take place due to the Covid pandemic.
In the 2020/21/22 seasons, he was a member of the Vienna State Opera’s International Opera Studio, where he has already sung roles such as Marullo/“Rigoletto”, Paris/“Romeo et Juliette”, Dancairo/“Carmen” and Figaro and Barolo/“Barbiere di Siviglia” (children’s version).
From 2022 to 2024, he sang in the ensemble of the Vienna State Opera, including Dandini/“Cenerentola”, Malatesta/“Don Pasquale”, Harlequin/“Ariadne auf Naxos”, Roucher/“Andrea Chenier”, Belcore/“Elisir d’Amore”, Dandini/“Cenerentola”, Ned Keene/“Peter Grimes”.
He developed an ongoing collaboration with the Palazetto Bru Zane ensemble, performing concerts and recording CDs in France, Monte Carlo, and Budapest.
In the summer of 2024, he made his debut at the Salzburg Festival (in Peter Sellars‘ production of “Der Spieler”), and from the 2024/25 season onwards, he became a member of the ensemble at the Vienna Volksoper, where he sang roles such as Papageno/“The Magic Flute”, Falke/“Die Fledermaus”, and, above all, Figaro/“Le nozze di Figaro” for the first time.
In December 2025, he made his debut in the title role of „Don Giovanni“ at the Vlaamse Opera in Ghent and Antwerp. This production was recorded for Operavision and is available for streaming.
Future plans include, in addition to his Vienna appearances, his return to the Salzburg Festival in the summer of 2026 and his debut at the Opéra de la Monnaie in Brussels.
In 2017, he founded the Michael Rakotoarivony Association to support and promote music education in his native Madagascar.