Cosima Federle was born in Regensburg in 2002 and started playing the violoncello at the age of four.

At 2010 she was admitted to to the "Bayrische Frühförderklasse", Regensburg under Wolfgang Nüsslein and from 2015-2019 she had lessons with Hanno Simons in Munich. In 2019 Cosima became a junior student of Peter Bruns at the “Hochschule für Musik und Theater Leipzig” and continued there as a full student since 2020.

Her playing was enriched by participation in masterclasses taught by Wolfgang Boettcher, Wen- Sinn Yang, László Fenyö, Jan Vogler, Natalia Gutman, Boris Kusnezow, Kian Soltani, Jens- Peter Maintz, Mischa Maisky and Alfred Brendl. Cosima has won various national and international competitions, including first prizes at the "International Dotzauer Competition", Dresden, at the "Làszlò Spezzaferri International Music Competition", Verona, at “Jugend Musiziert“ and 2nd prizes at the "International David Popper Competition“, Hungary and at the "Concours International de Tremplin", Paris, as well as the Music Prize of the City of Regensburg, a special prize by the "Harald Genzmer Foundation" and a Special prize by the German "Bundesapothekenkammer".

In 2013 Cosima and her brother were one of the main protagonists of the movie "Jugend Musiziert- der Film“, which was broadcasted by various German TV channels. She is a scholarship holder of the "Deutsche Stiftung Musikleben" and the "International Music Academy Liechtenstein" and received further scholarships by the "Geneva International String Academy", Switzerland, "Musique à Flaine", France, from the "Hildegard-Schmalzl Foundation" and the "Dresden Music Festival".

Since 2017 she was an annual scholarship holder of the project "Meisterschüler-Meister" in the Neuhardenberg Castle, Berlin with Jan Vogler.

Cosima has played at several festivals, including "Musique en Été", Geneva, "Dresden Music Festival", "Festival Momentum", Stolberg and performed at Elbphilharmonie Hamburg, Stadtcasino Basel and Gewandhaus Leipzig.

She produced several recordings with the “Bayrischer Rundfunk“, “Deutschlandfunk“, “Norddeutscher Rundfunk“ and “Radio Berlin Brandenburg“.

Cosima plays a cello by Nicolas Lupot, Paris 1821, that has been given to her as a loan by the “Deutsche Stiftung Musikleben“.