Erika Geldsetzer has been the violinist of the Fauré Quartet since it was founded in 1995 and has been a lecturer in violin at the Berlin University of the Arts since 2014. Since 2024 she has been Professor of Violin at the University of Music, Würzburg.

She performs with the Fauré Quartet on the world's most important stages, e.g. in London, Berlin, Amsterdam, Frankfurt, Buenos Aires, New York, Tokyo etc., as well as at the Schleswig-Holstein Festival, Rheingau Festival and the Mecklenburg-Vorpommern Festival, and from 2012 to 2016 the quartet was artistic director of the Festspielfrühling Rügen.
Deutsche Grammophon has released CDs with piano quartets by Mozart, Mendelssohn and Brahms, among others. The quartet was awarded the Klassik Echo Prize for their recordings of Brahms and a collection of pop songs, and Sony released a CD with piano quartets by Richard Strauss and Gustav Mahler as well as arrangements for piano quartet and voice of songs by Richard Strauss and Mahler with the world-famous soprano Simone Kermes, made especially for the Faure Quartet.

Berlin Classics has released Mussorgsky's ‘Pictures at an Exhibition’ and a selection of Rachmanninov's ‘Etudes tableaux’, arranged by the Fauré Quartet itself, as well as the CD celebrating the quartet's 25th anniversary with works by its patron Gabriel Fauré and the latest CD with a mixture of works composed especially for the quartet and a selection of the quartet's favourite encores.
Erika Geldsetzer regularly gives chamber music courses with the Fauré Quartet, e.g. in Montepulciano (Italy), Melbu (Norway) and at the Karlsruhe University of Music, where the quartet is Ensemble in Residence.
She performs regularly as a soloist with orchestras such as the SWR Radio Symphony Orchestra, the MDR Radio Symphony Orchestra, the Duisburg Philharmonic, the Philarmonia Romania, the RhP State Youth Orchestra, the South Westphalian Philharmonic and the Robert Schumann Philharmonic Chemnitz under conductors such as Christian Järvi, Stefan Blunier and Elias Grandy.As concertmaster of the European Union Youth Orchestra (EUYO , 1995 - 2000) she worked with conductors such as Vladimir Ashkenazy, Bernhard Haitink, Sir Colin Davis and Mstislav Rostropovitsch.

From 2006 to 2010 she was a guest lecturer at the Royal Academy of Music (RAM) London, England, from 2009 to 2012 she was a lecturer at the Rhineland-Palatinate Chamber Music Foundation Villa Musica and is a founding member of the string quartet Villa Musica (2001-2012) together with Nicolaus Chumachenco, Enrique Santiago (later Benjamin Rivinius) and Martin Ostertag.

In 2011, Erika Geldsetzer founded the Fountain Duo together with the English pianist and conductor Ian Fountain, with whom she performs regularly. Together with the world-renowned cellist David Geringas, they often expand into a piano trio.Erika Geldsetzer gives solo and chamber music courses at the Academia Internazionale di Musica, Cervo, Italy, the Boszok Music Festival in Hungary, AIMS Foundation Solsona, Spain, and at the Academy for Music and Dance, Jerusalem, Israel, among others.