Ria Ideta is a Vienna-born, Kumamoto-raised marimbist and arranger based in Berlin. She began marimba and piano at age six and later studied at the conservatoires in Paris and Strasbourg. In 2003, she won first prize at the inaugural International Marimba Competition in Paris.
Since 2012, Ideta has served as a principal artist with Kammeroper München. She is also a guest professor at Heisei College of Music and the London Performing Arts Academy.
In 2026, she serves as chair of Loop Kumamoto Music Festival, established in her home region of Kumamoto.