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Alexander Sonderegger has performed with orchestras including the Stuttgarter Philharmoniker, the Orquesta Sinfónica de la Región de Murcia, Spain, the Sinfonietta Lentua Orchestra in Kuhmo, Finnland, the Murmansk Philharmonic, Russia, and the Morocco Philharmonic Orchestra. At the Liederhalle Beethoven Hall in Stuttgart he has played piano concertos by Beethoven, Grieg, Tchaikovsky, and Brahms. In 2023 through cooperation with Manhattan Concert Artists Alexander has perfromed at the Musikverein in Vienna and Carnegie Hall in New York.

Alexander Sonderegger was born in 1991 in Petrozavodsk, Russia, to a family of musicians and studied at the Petrozavodsk State Glazunov Conservatory under Viktor Portnoi. In 2008, he attended the State University of Music and Performing Arts in Stuttgart where he was taught by Kirill Gerstein, Shoshana Rudiakov, Péter Nagy and Florian Wiek. Alexander graduated from Stuttgart in 2017, passing his soloist concert exam with distinction.

Alexander has garnered prizes at many international competitions, including first prize and "The Czech Radio Prize" at the Carl Czerny International Piano Competition in Prague, first prize at the 16. International Piano Competition in Rome, second prize at the ClaMo Competition in Murcia and first prize at the Clara Schumann Competition in Stuttgart. In 2019, Alexander has won the first prize at the 21st International Piano Competition of Ile de France and the IKIF Artist Recognition Scholarship Award at the International Keyboard Institut & Festival“ in New York.

Together with his brother Eduard Sonderegger (violin) he has been performing for over 20 years as the SONDEREGGER DUO. In 2019, the Duo has released its first CD with works by Brahms, Szymanowski, and Enesco. In 2022 the SONDEREGGER DUO has played a recital at the Gasteig Munich, and in January 2024 the duo will make a debut at Konzerthaus Berlin.

From 2018 to 2019 Alexander Sonderegger held a position as lecturer and accompanist at the Strings Department of the State University of Music and Performing Arts in Stuttgart. From 2019 he started to work as a piano teacher at the same university, followed by further pedagogic activity at the College of Catholic Church Music and Musical Education in Regensburg. In 2021 he was offered a position as a piano lecturer at the State University of Music and Performing Arts in Stuttgart, position which he currently holds.

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