Alexander Sonderegger is regularly heard on major international stages, with performances at the Musikverein Vienna, the Mozarteum Salzburg, the Konzerthaus Berlin, the Gasteig Munich, the Lentua Hall in Kuhmo, Finland, and the legendary Carnegie Hall in New York. In the Stuttgart Liederhalle he has performed piano concertos by Tchaikovsky, Grieg, Beethoven, and Brahms. As a soloist he has appeared with renowned orchestras such as the Stuttgarter Philharmoniker, the Morocco Philharmonic Orchestra, and the Orquesta Sinfónica de la Región de Murcia.

Born in 1991 in Petrozavodsk, Russia, Alexander Sonderegger began his piano studies in 2008 at the State University of Music and Performing Arts Stuttgart (HMDK), completing his concert exam with distinction in 2017. His most influential teachers include Kirill Gerstein, Shoshana Rudiakov, Péter Nagy, and Florian Wiek.

He is a prizewinner of the International Piano Competition “Île-de-France” in Maisons-Laffitte, the IKIF Artist Recognition Scholarship Award at the International Keyboard Institute & Festival in New York, the XVI International Piano Competition in Rome, and the Carl Czerny International Piano Competition in Prague, where he received both First Prize and the Czech Radio Prize.

A close chamber music partnership connects him with his brother, violinist Eduard Sonderegger, as the Sonderegger Duo. Performances have taken them to venues such as the Gasteig Munich, the “Rising Stars!” Festival in Stuttgart, and the Konzerthaus Berlin. Their debut CD with works by Brahms, Szymanowski, and Enescu was released in 2019.

Following teaching positions in Stuttgart and at the University of Catholic Church Music and Musical Education in Regensburg, Alexander Sonderegger has held a lectureship in piano at the HMDK Stuttgart since 2021. His solo CD Five Sides of Fantasy, featuring works by Bach, Busoni, Chopin, Scriabin, and Balakirev, was released in 2024 by the label RCD.