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Richard Strauss wrote his last opera in 1940-41 in the midst of the raging war. The libretto was written by his friend Clemens Krauss, but the idea originally came from the author Stefan Zweig. Perhaps he wanted to write an opera with content that defied the barbarity that was going on around him. If civilized people could converse, why not countries too? And it must have been provocative for those in power that the opera discusses the quality of Couperin's and Rameau's music. The story takes place around 1775 at a castle in the Paris area. A group has gathered to celebrate Countess Madeleine's birthday. As a newly widowed woman, she is courted by the composer Flamand and the poet Olivier. She is torn between which of them to choose. The two are left to embody the question of which art form comes first, music or literature, a question that can also be said to be the theme of the opera. The sextet, which serves as an overture, is composed by Flamand in the opera as a love gift to the countess. The style of the work, however, is neither rococo nor modernism. Instead, it contains much of the atmosphere that characterizes Strauss's own late-Romantic style before the turn of the century.

Danish Nancy Dalberg grew up in a manor house on Funen. Her father was the successful pharmacist and industrialist Christian D A Hansen. She started playing the piano early and after her marriage in 1901 and settling in Copenhagen, she continued piano studies with Ove Christensen. A promising career as a concert pianist, however, was cut short by a chronic tendinitis. From 1909-11 she studied music theory and composition with Johan Svendsen and from 1913 with Carl Nielsen. This, incidentally, came to play a big role in her life. Among other things, she was entrusted to instrument parts of Nielsen's Aladdin and Fynsk forår. He would also appear in one of the parts at the premiere of her first string quartet, which took place in her home in 1914. He also premiered in 1915 and 1918 three of her orchestral works, Scherzo for String Orchestra op. 6, Symphony in C sharp minor (1917) and Capriccio for orchestra (1918). Nancy Dalberg's output is not large. In addition to the aforementioned orchestral works and a few more, she wrote about fifty songs, three of which are for voice and orchestra. Among the latter can be mentioned Marianne Sinclair's song, one of the pieces for a planned opera based on Gösta Berling's saga. Unfortunately, Selma Lagerlöf had already promised away the opera rights, so that venture had to be shelved. Among the chamber music works are a number of smaller works for violin and piano as well as cello and piano. But it is above all the three string quartets that have made themselves known, not least after an excellent recording in 2019. The third string quartet was never published during Dalberg's lifetime, although in 1946 she attempted to pay for the printing herself. However, it dragged on over time. Only in 1950, a year after her death, was the work published. It was dedicated to teacher and friend Carl Nielsen. He died in 1931, but had hopefully listened to the work at the performances in 1928 and 1929. Yngve Bernhardsson

Dumka ('thought' in Ukrainian) is the name of traditional Slavic music that moves from melancholy to joy. Melancholy abounded in Rebecca Clarke's life, and few instruments can paint that feeling as tenderly as the viola. The trio is written with deep knowledge of Eastern European music and artistry at the highest level. Among other things, Clarke had compiled a book about the Czech composer Bohuslav Martinu. Rebecca Clarke, who was born in England and died in the United States, had both English and American citizenship. Viola and singing were her main instruments and she was in demand. One of the orchestras she was a member of had been conducted by Maurice Ravel. As a composer, she was so skilled that when she submitted her viola sonata to a composition competition, she became one of the two winners. The jury believed that a man had written it under a female pseudonym. You can hear for yourself what prejudices are buried in that idea. The truth became too hard-pressed and the prize was awarded to the other composer. Today, her music for viola is a must for any self-respecting viola player. Katarina A Karlsson

"Concertant symphony" meant a concert for more than one soloist. As public concerts for paying audiences became popular, the need increased for "brilliant" orchestral music in which famous soloists could show off. Preferably several in the same work. Mozart wrote a Sinfonia Concertante for four wind instruments during his six months in Paris - when his mother died over there. It does not seem to have been performed there and exists today only in a heavily edited version from the 19th century. In Paris he also wrote the concerto for flute and harp. His Concertone from 1773 also belongs to the genre. The Double Piano Concerto in E flat major as well. The Sinfonia concertante in E flat major for violin and viola with orchestra was probably written in Salzburg sometime during the summer of 1779. The original notes have been lost along the way. This makes it more difficult to date the music. The first known printed edition is from 1801. It is one of Mozart's longest concertos, just over half an hour. The viola part is notated in D major, so the musician had to tune the instrument a semitone higher. The idea was perhaps to get a sharper sound so that the soloist would not be overpowered. It is also said to be easier to play with a "D major grip".

Sara Trobäck has been Principal concertmaster of the Gothenburg Symphony Orchestra since 2002. She studied with Tibor Fülep at the Gothenburg Academy of Music and with György Pauk at the Royal Academy of Music in London. In connection with her graduation concert in 2001, she received the academy's prestigious Professional Diploma and the Dove Award. Sara Trobäck has also participated in master classes with Lord Yehudi Menuhin, Ruggiero Ricci and Joshua Bell. As a soloist, she has appeared with the Gothenburg Symphony Orchestra, the Swedish Chamber Orchestra, the Stockholm Sinfonietta and the Helsingborg Symphony Orchestra, among others. In 2010, she premiered a violin concerto by Johannes Jansson dedicated to her and the Gothenburg Symphony Orchestra. Her London debut took place in the summer of 1999 when she performed Tchaikovsky's Violin Concerto with the London Soloists in St Martin-in-the-Fields. Sara Trobäck has also given concerts in Scotland, Germany, France, Spain, Portugal and China. In 2002 she formed Trio Poseidon together with solo cellist Claes Gunnarsson and pianist Per Lundberg. The trio has among other things recorded Beethoven's Triple Concerto. Sara Trobäck plays a Giovanni Battista Guadagnini on loan from the Järnåker Foundation.

Justyna Jara began playing the violin when she was seven years old. After winning a prize at a competition for young violinists in Gdansk, Poland, she continued her studies in Warsaw with Miroslaw Lawrynowicz. During her studies, she won prizes in several violin competitions. She also recorded Wieniawski's Etudes Caprices Op 10 and 18 for the Acte Préalable record label as a tribute to her teacher. She studied for a year at the Chopin University in Warsaw and then at Juilliard in New York, working with orchestras such as the London Symphony Orchestra, the London Philharmonic Orchestra, the Philharmonia Orchestra and the Royal Philharmonic Orchestra, often as assistant concertmaster. In 2014, she was appointed second concertmaster of the Gothenburg Symphony Orchestra.

Juan Zurutuza is a pianist trained in Mexico and the Netherlands. He studied with Rian de Waal at the Royal Conservatory in The Hague from 2001-2008. He has played solo and chamber music concerts with members of the Rotterdam Philharmonic Orchestra and the Concertgebouw Orchestra in Scandinavia, Europe and North America. Since 2022, Juan Zurutuza is pianist in the Gothenburg Symphony. He is currently studying with pianist Robert Durso, thanks to several scholarships received from Göteborgs Symfoniker Friend Association, the Marianne & Ary Paley Scholarship Fund, the Eduard Magnus Music Fund and the Mary von Sydows Donation Fund.

The Gothenburg Symphony Vocal Ensemble (GSVE) was formed in 2016 and consists of 12 professional singers. The ensemble works both as part of the Gothenburg Symphony Choir in major symphonic works performed together with the Gothenburg Symphony, and as an independent ensemble under the direction of Katie Thomas. GSVE is a group of experienced and versatile singers, who perform varied programs and explore a wide repertoire, from medieval music to newly commissioned works. The ensemble has previously collaborated with, among others, the Helsingborg Symphony Orchestra and the Barockakademin Göteborgs Symfoniker and performs regular vocal programs both in Gothenburg's Concert Hall and around the Västra Götaland region.

Juan Zurutuza is a pianist trained in Mexico and the Netherlands. He studied with Rian de Waal at the Royal Conservatory in The Hague from 2001-2008. He has played solo and chamber music concerts with members of the Rotterdam Philharmonic Orchestra and the Concertgebouw Orchestra in Scandinavia, Europe and North America. Since 2022, Juan Zurutuza is pianist in the Gothenburg Symphony. He is currently studying with pianist Robert Durso, thanks to several scholarships received from Göteborgs Symfoniker Friend Association, the Marianne & Ary Paley Scholarship Fund, the Eduard Magnus Music Fund and the Mary von Sydows Donation Fund.

Sara Trobäck has been Principal concertmaster of the Gothenburg Symphony Orchestra since 2002. She studied with Tibor Fülep at the Gothenburg Academy of Music and with György Pauk at the Royal Academy of Music in London. In connection with her graduation concert in 2001, she received the academy's prestigious Professional Diploma and the Dove Award. Sara Trobäck has also participated in master classes with Lord Yehudi Menuhin, Ruggiero Ricci and Joshua Bell. As a soloist, she has appeared with the Gothenburg Symphony Orchestra, the Swedish Chamber Orchestra, the Stockholm Sinfonietta and the Helsingborg Symphony Orchestra, among others. In 2010, she premiered a violin concerto by Johannes Jansson dedicated to her and the Gothenburg Symphony Orchestra. Her London debut took place in the summer of 1999 when she performed Tchaikovsky's Violin Concerto with the London Soloists in St Martin-in-the-Fields. Sara Trobäck has also given concerts in Scotland, Germany, France, Spain, Portugal and China. In 2002 she formed Trio Poseidon together with solo cellist Claes Gunnarsson and pianist Per Lundberg. The trio has among other things recorded Beethoven's Triple Concerto. Sara Trobäck plays a Giovanni Battista Guadagnini on loan from the Järnåker Foundation.

Katie Thomas is a choral conductor from Wales and since 2023 the choirmaster of the Gothenburg Symphony Orchestra. She is also the conductor and artistic director of the Gothenburg Symphony Vocal Ensemble. Previous engagements include nine years as a voice coach for the BBC Chorus, assignments as a guest choirmaster and conductor with the BBC Singers, MDR Rundfunkchor, National Youth Choirs of Great Britain and the Junior Royal College of Music, as well as a guest lecturer in choral conducting and director of the chamber choir at the University of Music and Performing Arts in Gothenburg. She has been a teacher of choral conducting techniques at the Association of British Choral Directors and a judge at choral festivals worldwide within the organization Interkultur. As a professional soprano, Katie Thomas has been engaged with the UK's leading choirs, such as the Monteverdi Choir under the direction of Sir John Eliot Gardiner, Polyphony and the Academy of Ancient Music. She has appeared in major concert venues in Europe and the USA, including the Concertgebouw Amsterdam, the Musikverein Vienna and Carnegie Hall in New York. Together with London Voices, she has recorded several soundtracks for films and video games, often at the renowned Abbey Road Studios, as well as concerts for both television and radio. Katie Thomas is a graduate of Cardiff University and the Royal Academy of Music in London. In 2020, she was appointed an Associate of the Royal Academy of Music (ARAM) in the United Kingdom for outstanding contributions to professional music and significant achievements in conducting and choral music.

Juan Zurutuza is a pianist trained in Mexico and the Netherlands. He studied with Rian de Waal at the Royal Conservatory in The Hague from 2001-2008. He has played solo and chamber music concerts with members of the Rotterdam Philharmonic Orchestra and the Concertgebouw Orchestra in Scandinavia, Europe and North America. Since 2022, Juan Zurutuza is pianist in the Gothenburg Symphony. He is currently studying with pianist Robert Durso, thanks to several scholarships received from Göteborgs Symfoniker Friend Association, the Marianne & Ary Paley Scholarship Fund, the Eduard Magnus Music Fund and the Mary von Sydows Donation Fund.

The Gothenburg Symphony Vocal Ensemble (GSVE) was formed in 2016 and consists of 12 professional singers. The ensemble works both as part of the Gothenburg Symphony Choir in major symphonic works performed together with the Gothenburg Symphony, and as an independent ensemble under the direction of Katie Thomas. GSVE is a group of experienced and versatile singers, who perform varied programs and explore a wide repertoire, from medieval music to newly commissioned works. The ensemble has previously collaborated with, among others, the Helsingborg Symphony Orchestra and the Barockakademin Göteborgs Symfoniker and performs regular vocal programs both in Gothenburg's Concert Hall and around the Västra Götaland region.

Lisa Ford has been the principal horn player in the Gothenburg Symphony Orchestra for 30 years. Lisa is an active chamber musician and soloist and a member of the ensemble Gageego!. She is a senior lecturer at the Gothenburg Academy of Music and Performing Arts and a mentor in the master's program in symphony orchestra performance, she is a horn teacher and teaches wind and chamber music ensembles. Lisa Ford is educated at the Interlochen Arts Academy. She has been a member of the Civic Orchestra of Chicago and has a diploma from the Norwegian Academy of Music, NMH. She was previously assistant principal horn player in the San Diego Symphony Orchestra. She is also a certified professional coach.

Sara Trobäck has been Principal concertmaster of the Gothenburg Symphony Orchestra since 2002. She studied with Tibor Fülep at the Gothenburg Academy of Music and with György Pauk at the Royal Academy of Music in London. In connection with her graduation concert in 2001, she received the academy's prestigious Professional Diploma and the Dove Award. Sara Trobäck has also participated in master classes with Lord Yehudi Menuhin, Ruggiero Ricci and Joshua Bell. As a soloist, she has appeared with the Gothenburg Symphony Orchestra, the Swedish Chamber Orchestra, the Stockholm Sinfonietta and the Helsingborg Symphony Orchestra, among others. In 2010, she premiered a violin concerto by Johannes Jansson dedicated to her and the Gothenburg Symphony Orchestra. Her London debut took place in the summer of 1999 when she performed Tchaikovsky's Violin Concerto with the London Soloists in St Martin-in-the-Fields. Sara Trobäck has also given concerts in Scotland, Germany, France, Spain, Portugal and China. In 2002 she formed Trio Poseidon together with solo cellist Claes Gunnarsson and pianist Per Lundberg. The trio has among other things recorded Beethoven's Triple Concerto. Sara Trobäck plays a Giovanni Battista Guadagnini on loan from the Järnåker Foundation.

Claes Gunnarsson has toured all over the world as a soloist, chamber musician, orchestral musician and teacher. He made an early and acclaimed debut as soloist in Dvorák's Cello Concerto with the Gothenburg Symphony Orchestra. Shortly afterwards he was appointed principal cellist of the orchestra, a position he has held since 1999. As soloist, Claes has appeared in some of the world's most prestigious concert halls, including Wigmore Hall, Queen Elizabeth Hall, St. Petersburg Philharmonie, Shanghai Symphony Hall, Seoul Arts Center and Singapore Symphony Hall. He has also appeared at leading international festivals such as La Folle Journée in Nantes, Music@Menlo in California, Mecklenburg-Vorpommern, Affinis in Japan, Yuri Temirkanov's Winter Festival in St. Petersburg and the Qingdao International Cello Festival. Conductors he has collaborated with include Neeme Järvi, Kent Nagano, Santtu-Matias Rouvali, Alexander Lazarev, Christian Zacharias and Christopher Warren-Green. As a chamber musician, Claes has collaborated with prominent musicians such as Leonidas Kavakos, Nikolaj Znaider, Christian Zacharias and Hélène Grimaud. Of particular significance is his nearly 25-year collaboration with violinist Sara Trobäck and pianist Per Lundberg in the piano trio Trio Poseidon. The trio has toured extensively both nationally and internationally and made a critically acclaimed recording of Beethoven's Triple Concerto and Brahms' Double Concerto together with the Gothenburg Symphony Orchestra and Neeme Järvi for Chandos Records. For Chandos Records, he has also recorded Weinberg's Cello Fantasy and Cello Concerto together with the Gothenburg Symphony Orchestra and Thord Svedlund. The recording of the cello concerto was awarded the Diapason d'Or award. He is also represented on BIS Records with the premiere recording of Albert Schnelzer's cello concerto. Claes is regularly invited as a guest solo cellist with, among others, the Oslo Philharmonic, the BBC Symphony Orchestra and the London Symphony Orchestra. In parallel with his concert performances, he is active as a teacher at the Academy of Drama and Music at the University of Gothenburg. Claes plays a cello built in 1707 by David Tecchler, generously on loan from the Järnåker Foundation.

Juan Zurutuza is a pianist trained in Mexico and the Netherlands. He studied with Rian de Waal at the Royal Conservatory in The Hague from 2001-2008. He has played solo and chamber music concerts with members of the Rotterdam Philharmonic Orchestra and the Concertgebouw Orchestra in Scandinavia, Europe and North America. Since 2022, Juan Zurutuza is pianist in the Gothenburg Symphony. He is currently studying with pianist Robert Durso, thanks to several scholarships received from Göteborgs Symfoniker Friend Association, the Marianne & Ary Paley Scholarship Fund, the Eduard Magnus Music Fund and the Mary von Sydows Donation Fund.

Justyna Jara began playing the violin when she was seven years old. After winning a prize at a competition for young violinists in Gdansk, Poland, she continued her studies in Warsaw with Miroslaw Lawrynowicz. During her studies, she won prizes in several violin competitions. She also recorded Wieniawski's Etudes Caprices Op 10 and 18 for the Acte Préalable record label as a tribute to her teacher. She studied for a year at the Chopin University in Warsaw and then at Juilliard in New York, working with orchestras such as the London Symphony Orchestra, the London Philharmonic Orchestra, the Philharmonia Orchestra and the Royal Philharmonic Orchestra, often as assistant concertmaster. In 2014, she was appointed second concertmaster of the Gothenburg Symphony Orchestra.

Walter Witick was employed by the Gothenburg Symphony in 2023. He was born in 1992 in Karleby, Finland and began his studies as an 8-year-old at the Middle Österbotten Conservatory. In 2007, he began his studies at the Sibelius Academy's youth department and went on to obtain a bachelor's degree at the Amsterdam Conservatory and a master's degree from the Sibelius Academy. Alongside his work in the orchestra, chamber music is close to his heart.

Danish Nancy Dalberg grew up in a manor house on Funen. Her father was the successful pharmacist and industrialist Christian D A Hansen. She started playing the piano early and after her marriage in 1901 and settling in Copenhagen, she continued piano studies with Ove Christensen. A promising career as a concert pianist, however, was cut short by a chronic tendinitis. From 1909-11 she studied music theory and composition with Johan Svendsen and from 1913 with Carl Nielsen. This, incidentally, came to play a big role in her life. Among other things, she was entrusted to instrument parts of Nielsen's Aladdin and Fynsk forår. He would also appear in one of the parts at the premiere of her first string quartet, which took place in her home in 1914. He also premiered in 1915 and 1918 three of her orchestral works, Scherzo for String Orchestra op. 6, Symphony in C sharp minor (1917) and Capriccio for orchestra (1918). Nancy Dalberg's output is not large. In addition to the aforementioned orchestral works and a few more, she wrote about fifty songs, three of which are for voice and orchestra. Among the latter can be mentioned Marianne Sinclair's song, one of the pieces for a planned opera based on Gösta Berling's saga. Unfortunately, Selma Lagerlöf had already promised away the opera rights, so that venture had to be shelved. Among the chamber music works are a number of smaller works for violin and piano as well as cello and piano. But it is above all the three string quartets that have made themselves known, not least after an excellent recording in 2019. The third string quartet was never published during Dalberg's lifetime, although in 1946 she attempted to pay for the printing herself. However, it dragged on over time. Only in 1950, a year after her death, was the work published. It was dedicated to teacher and friend Carl Nielsen. He died in 1931, but had hopefully listened to the work at the performances in 1928 and 1929. Yngve Bernhardsson

Justyna Jara began playing the violin when she was seven years old. After winning a prize at a competition for young violinists in Gdansk, Poland, she continued her studies in Warsaw with Miroslaw Lawrynowicz. During her studies, she won prizes in several violin competitions. She also recorded Wieniawski's Etudes Caprices Op 10 and 18 for the Acte Préalable record label as a tribute to her teacher. She studied for a year at the Chopin University in Warsaw and then at Juilliard in New York, working with orchestras such as the London Symphony Orchestra, the London Philharmonic Orchestra, the Philharmonia Orchestra and the Royal Philharmonic Orchestra, often as assistant concertmaster. In 2014, she was appointed second concertmaster of the Gothenburg Symphony Orchestra.

Walter Witick was employed by the Gothenburg Symphony in 2023. He was born in 1992 in Karleby, Finland and began his studies as an 8-year-old at the Middle Österbotten Conservatory. In 2007, he began his studies at the Sibelius Academy's youth department and went on to obtain a bachelor's degree at the Amsterdam Conservatory and a master's degree from the Sibelius Academy. Alongside his work in the orchestra, chamber music is close to his heart.

Mårten Larsson was born in Örebro and trained at the Royal Academy of Music under Alf Nilsson. He has been a leading oboist in Sweden for many years and is solo oboist in the Gothenburg Symphony Orchestra. He has also been a member of the Stockholm Sinfonietta. Mårten Larsson teaches at the Gothenburg Academy of Music and Drama and has released albums with music by Johan Helmich Roman, JS Bach and Keith Jarrett, among others.

Claes Gunnarsson has toured all over the world as a soloist, chamber musician, orchestral musician and teacher. He made an early and acclaimed debut as soloist in Dvorák's Cello Concerto with the Gothenburg Symphony Orchestra. Shortly afterwards he was appointed principal cellist of the orchestra, a position he has held since 1999. As soloist, Claes has appeared in some of the world's most prestigious concert halls, including Wigmore Hall, Queen Elizabeth Hall, St. Petersburg Philharmonie, Shanghai Symphony Hall, Seoul Arts Center and Singapore Symphony Hall. He has also appeared at leading international festivals such as La Folle Journée in Nantes, Music@Menlo in California, Mecklenburg-Vorpommern, Affinis in Japan, Yuri Temirkanov's Winter Festival in St. Petersburg and the Qingdao International Cello Festival. Conductors he has collaborated with include Neeme Järvi, Kent Nagano, Santtu-Matias Rouvali, Alexander Lazarev, Christian Zacharias and Christopher Warren-Green. As a chamber musician, Claes has collaborated with prominent musicians such as Leonidas Kavakos, Nikolaj Znaider, Christian Zacharias and Hélène Grimaud. Of particular significance is his nearly 25-year collaboration with violinist Sara Trobäck and pianist Per Lundberg in the piano trio Trio Poseidon. The trio has toured extensively both nationally and internationally and made a critically acclaimed recording of Beethoven's Triple Concerto and Brahms' Double Concerto together with the Gothenburg Symphony Orchestra and Neeme Järvi for Chandos Records. For Chandos Records, he has also recorded Weinberg's Cello Fantasy and Cello Concerto together with the Gothenburg Symphony Orchestra and Thord Svedlund. The recording of the cello concerto was awarded the Diapason d'Or award. He is also represented on BIS Records with the premiere recording of Albert Schnelzer's cello concerto. Claes is regularly invited as a guest solo cellist with, among others, the Oslo Philharmonic, the BBC Symphony Orchestra and the London Symphony Orchestra. In parallel with his concert performances, he is active as a teacher at the Academy of Drama and Music at the University of Gothenburg. Claes plays a cello built in 1707 by David Tecchler, generously on loan from the Järnåker Foundation.

Cellist Johan Stern is principal conductor of the Gothenburg Symphony Orchestra and teaches cello, chamber music and orchestral playing at the Academy of Music and Performing Arts. He studied at the Royal Academy of Music in Stockholm and at the Juilliard School in New York. As a member of Gageego!, the Gothenburg Ensemble for New Music, he has premiered several solo works by our leading Nordic composers. Johan Stern has participated in a number of international festivals and as a soloist and chamber musician has performed with figures such as Bobby McFerrin, Edward Gardner, Petri Sakari, Kristjan Järvi, Daniel Müller-Schott and Levon Chilingirian. During his studies at Juilliard, he had the privilege of collaborating with several internationally renowned musical figures, including cellist Yo-Yo Ma and composers Elliott Carter and John Cage.

Claes Gunnarsson has toured all over the world as a soloist, chamber musician, orchestral musician and teacher. He made an early and acclaimed debut as soloist in Dvorák's Cello Concerto with the Gothenburg Symphony Orchestra. Shortly afterwards he was appointed principal cellist of the orchestra, a position he has held since 1999. As soloist, Claes has appeared in some of the world's most prestigious concert halls, including Wigmore Hall, Queen Elizabeth Hall, St. Petersburg Philharmonie, Shanghai Symphony Hall, Seoul Arts Center and Singapore Symphony Hall. He has also appeared at leading international festivals such as La Folle Journée in Nantes, Music@Menlo in California, Mecklenburg-Vorpommern, Affinis in Japan, Yuri Temirkanov's Winter Festival in St. Petersburg and the Qingdao International Cello Festival. Conductors he has collaborated with include Neeme Järvi, Kent Nagano, Santtu-Matias Rouvali, Alexander Lazarev, Christian Zacharias and Christopher Warren-Green. As a chamber musician, Claes has collaborated with prominent musicians such as Leonidas Kavakos, Nikolaj Znaider, Christian Zacharias and Hélène Grimaud. Of particular significance is his nearly 25-year collaboration with violinist Sara Trobäck and pianist Per Lundberg in the piano trio Trio Poseidon. The trio has toured extensively both nationally and internationally and made a critically acclaimed recording of Beethoven's Triple Concerto and Brahms' Double Concerto together with the Gothenburg Symphony Orchestra and Neeme Järvi for Chandos Records. For Chandos Records, he has also recorded Weinberg's Cello Fantasy and Cello Concerto together with the Gothenburg Symphony Orchestra and Thord Svedlund. The recording of the cello concerto was awarded the Diapason d'Or award. He is also represented on BIS Records with the premiere recording of Albert Schnelzer's cello concerto. Claes is regularly invited as a guest solo cellist with, among others, the Oslo Philharmonic, the BBC Symphony Orchestra and the London Symphony Orchestra. In parallel with his concert performances, he is active as a teacher at the Academy of Drama and Music at the University of Gothenburg. Claes plays a cello built in 1707 by David Tecchler, generously on loan from the Järnåker Foundation.

Cellist Johan Stern is principal conductor of the Gothenburg Symphony Orchestra and teaches cello, chamber music and orchestral playing at the Academy of Music and Performing Arts. He studied at the Royal Academy of Music in Stockholm and at the Juilliard School in New York. As a member of Gageego!, the Gothenburg Ensemble for New Music, he has premiered several solo works by our leading Nordic composers. Johan Stern has participated in a number of international festivals and as a soloist and chamber musician has performed with figures such as Bobby McFerrin, Edward Gardner, Petri Sakari, Kristjan Järvi, Daniel Müller-Schott and Levon Chilingirian. During his studies at Juilliard, he had the privilege of collaborating with several internationally renowned musical figures, including cellist Yo-Yo Ma and composers Elliott Carter and John Cage.

Mårten Larsson was born in Örebro and trained at the Royal Academy of Music under Alf Nilsson. He has been a leading oboist in Sweden for many years and is solo oboist in the Gothenburg Symphony Orchestra. He has also been a member of the Stockholm Sinfonietta. Mårten Larsson teaches at the Gothenburg Academy of Music and Drama and has released albums with music by Johan Helmich Roman, JS Bach and Keith Jarrett, among others.

Justyna Jara began playing the violin when she was seven years old. After winning a prize at a competition for young violinists in Gdansk, Poland, she continued her studies in Warsaw with Miroslaw Lawrynowicz. During her studies, she won prizes in several violin competitions. She also recorded Wieniawski's Etudes Caprices Op 10 and 18 for the Acte Préalable record label as a tribute to her teacher. She studied for a year at the Chopin University in Warsaw and then at Juilliard in New York, working with orchestras such as the London Symphony Orchestra, the London Philharmonic Orchestra, the Philharmonia Orchestra and the Royal Philharmonic Orchestra, often as assistant concertmaster. In 2014, she was appointed second concertmaster of the Gothenburg Symphony Orchestra.