For decades, Tanja Tetzlaff has been one of the most influential musicians of her generation, both as soloist and chamber musician. Her playing is characterized by a uniquely fine yet powerful and nuanced sound, which always goes hand in hand with cultivated musicality. Tanja Tetzlaff’s trademark is her extraordinarily broad repertoire and her desire for new, groundbreaking concert formats.
In April 2021, Tanja Tetzlaff became the first scholarship holder to be awarded the highly endowed Glenn Gould Bach Fellowship of the city of Weimar. She now has the opportunity to realize a two-year film project relating Bach’s famous cello suites to nature and climate change issues: Suites4Nature / Suites for a Wounded World.
Tanja Tetzlaff is a founding member of the Tetzlaff Quartet (Christian Tetzlaff, Elisabeth Kufferath, and Hanna Weinmeister). She plays a cello by Giovanni Baptista Guadagnini from 1776.

In recent years, Norwegian pianist Gunilla Süssmann has been reaping steadily increasing acclaim and has become a much sought-after artist on an international level. Her virtuosity, combined with strong sensitivity and imagination, is highly praised, and her thoroughly personal, passionate interpretations forge a unique bond with audiences and critics. She has performed in venues such as Concertgebouw Amsterdam, Wigmore Hall, the Louvre, and Festspielhaus Baden-Baden, and is a popular guest at major chamber music festivals in Norway and across Europe. The English Chamber Orchestra, the Bournemouth Symphony Orchestra, the Oslo Philharmonic, the WDR Cologne and the Staatskapelle Weimar are amongst the many orchestras with whom she has played. Chamber music holds a special place in her heart, and the core of that devotion is her 12-year collaboration with cellist Tanja Tetzlaff. Critics describe their symbiotic playing as magical, and the duo has recorded two CDs on the Avi label.

“One of the most brilliant and inquisitive artists of the new generation”, said the New York Times of Christian Tetzlaff, one of today’s most highly demanded soloists on stages all over the world. As at home in the classical and romantic repertoire as in contemporary music, Christian Tetzlaff sets standards with his interpretations of the violin concertos of Beethoven, Brahms and Tchaikovsky as well as Berg, Schönberg, Shostakovich and Ligeti. He is particularly well-known for his incomparable performances of the Bach Solo Sonatas and Partitas. In 2005 he was chosen by Musical America as “Instrumentalist of the Year”. He frequently played recitals with Leif Ove Andsnes and Lars Vogt. As a soloist and chamber musician he has performed in all international musical centres, including amongst others New York’s Carnegie Hall and Lincoln Centre, Concertgebouw Amsterdam, Vienna’s Konzerthaus and Musikverein, and in London, Paris, Berlin and Munich.
Christian Tetzlaff plays a violin by German violinmaker Peter Greiner.

In addition to her phenomenal career as a soloist and chamber musician, Antje Weithaas is a soughtafter conductor, particularly renowned for her play-conduct collaborations with leading international chamber orchestras.
As artistic director of Camerata Bern for nearly a decade, she helped shape the ensemble’s distinctive musical identity and continues to collaborate with them regularly. From the concertmaster’s podium, she has conducted large-scale repertoire, including Beethoven’s symphonies, and has recorded works by Tchaikovsky, Brahms, and Beethoven for CAvi.
She has also enjoyed a close artistic partnership as artiste associé with the Orchestre de Chambre de Paris.
In 2025, she will embark on a South American tour with the Concertgebouw Chamber Orchestra. Her extensive discography includes Beethoven’s and Berg’s Violin Concertos (with the Stavanger Symphony Orchestra and Steven Sloane, CAvi) and the complete works for violin and orchestra by Max Bruch (with the NDR Radiophilharmonie under Hermann Bäumer, CPO). Her acclaimed solo recordings feature J. S. Bach’s Sonatas and Partitas and Eugène Ysaÿe’s Six Sonatas. Further highlights include celebrated recordings of Robert Schumann’s Violin Concerto and Johannes Brahms’ Double Concerto—alongside cellist Maximilian Hornung and conductor Andrew Manze—which received the BBC Music Magazine Award in the „Concerto“ category. Her recording of Aram Khachaturian’s Violin Concerto and Concerto-Rhapsody with the Staatsorchester Rheinische Philharmonie, conducted by Daniel Raiskin, was also met with critical acclaim. Antje Weithaas began playing the violin at the age of four and studied with Professor Werner Scholz at the Hochschule für Musik “Hanns Eisler” in Berlin.
She won the Kreisler Competition in Graz in 1987, the Bach Competition in Leipzig in 1988, and the prestigious Joseph Joachim International Violin Competition Hannover in 1991, which she now co-directs artistically with Oliver Wille. After teaching for several years at the Universität der Künste Berlin, she joined the faculty at the Hochschule für Musik “Hanns Eisler” in 2004, where she has since become one of the world’s most respected violin pedagogues.
She performs on a 2001 violin by Peter Greiner.

Volker Jacobsen studied viola at the Lübeck Academy of Music with Prof. Barbara Westphal. Ever since youth he has bee passionately devoted to chamber music; in 1989 he founded the Artemis Quartet, of which he remained a member until 2007. The Artemis Quartet won the Munich ARD International Music Competition and the Paolo Borciani Prize. They went on to make a great number of CD recordings and appeared at all major international classical music venues, as well as in two films directed by Bruno Monsaigeon. Jacobsen was Professor of Chamber Music at Berlin University of the Arts, as well as at the Chapelle Musicale Reine Élisabeth in Brussels. In 2007 he was appointed Viola Professor at Hanover University of Music, Drama and Media.

Rachel Roberts performs internationally as soloist and chamber musician. As soloist she has collaborated with conductors Christoph von Dohnanyi, Andras Schiff, Richard Hickox and Martyn Brabbins performing concertos with the Philharmonia Orchestra, Cologne Chamber Orchestra and Kammerphilharmonie Graubunden in Switzerland amongst others. Rachel Roberts has played chamber music at Concertgebouw, Amsterdam, Musikverein (Grand Saal) Vienna, Alte Oper, Frankfurt, Wigmore Hall, Royal Festival Hall, Cadogan Hall and King’s Place. She appears at international festivals including Salzburg Festival, Wiener Festwoche, Schubertiade – Schwarzenberg, SPANNUNGEN, Mecklenburg Vorpommern, Hamburg “Oestertone”, Lofoten Norway and Stift Holland. Prizes for chamber music include the Diapason d’Or, ‚Supersonic Award’ and CD of the month in Fono Forum Magazine, Germany. Highlights in 2015 include a Wigmore Hall concert with Joshua Bell, Steven Isserlis, BBC Radio 3 recitals with the London Conchord Ensemble, live Deutschlandfunk broadcasts with the Tetzlaff Quartet and a solo CD release with pianist Lars Vogt. In May 2015 she has toured Japan with Christian Tetzlaff, Lars Vogt, and Tanja Tetzlaff. Rachel Roberts is Professor of Viola at the Guildhall School of Music and Drama. She has given masterclasses at the Britten Pears Young Artists Programme, Dartington International Summer School, Chethams School of Music and Birmingham Conservatoire.