Sonc Festival is an international chamber music festival in Slovenia, founded in 2016 by violinist Tanja Sonc.

“I founded the festival with a great desire to create chamber music at a high level in my home environment.”

“I want to show the beauty of Slovenia to musicians from abroad, to present our culture and cuisine, and to introduce classical music to the local audience. I have learned a lot during my studies at home and abroad, so I want to share this knowledge and bring something valuable back to my society. I believe that I can bring a lot of positive energy, motivation for young people and enliven summer evenings with the Sonc Festival concerts. Music connects people and we need it more than ever nowadays, because it is a universal language all over the world, understood by everyone.”

Tanja Sonc, Founder and Artistic Director

Tanja is a prize-winner of numerous national and international competitions. Among others, she is the winner of the Brahms Competition in Pörtschach (Austria), in 2015 she won the 3rd prize at the “Kiwanis Wettbewerb Zürich” and in 2016 she was the winner of the “New Stars Competition”. After studying in Ljubljana and Salzburg, she completed her second Master’s degree in Zurich at the ZHdK in 2017 with honours. As a soloist, she has collaborated with many renowned orchestras (Slovenian Philharmonic Orchestra, RTV Orchestra, Zagreb Soloists, HRTV Orchestra, etc.). In the 2017/2018 season, she became a member of the “Zürcher Kammerorchester”.

In 2017, Boštjan Lipovšek, a professor at the Academy of Music in Ljubljana and Zagreb and solo hornist of the RTV Slovenia Symphony Orchestra, joined the festival as artistic director and performer.

“It would be hard to describe in words the feelings and, above all, the impatience that overwhelm me just before our musical reunion in Radeče.

Just as I, then a curious child or young man, was part of this place at the confluence of the Sopot and the Sava rivers, so this place has always remained part of me. And hence all the excitement and enthusiasm in preparation for I don’t know which one in a row (the numbers don’t matter…) Sonc Festival….A festival that gives, gives back, unites and connects…

It is an immense pleasure for me to be able to (co)design the programme and some other organisational details, but above all I look forward to meeting my musical colleagues again and again, first of all Tanja, but also all the people you will see written in the concert sheets and really, up close and live, so close that you could almost touch them (quite unusual for the time we live in…) and hear them from the concert stage.  To meet all those who will be sitting on the other side of the stage is of special value.

It is beautiful to feel how music connects everyone to unprecedented dimensions. It is nice to be gratefully aware of all (or at least part of all) that has been received from one’s home environment, and it is even nicer to return it, or at least part of it, to that environment…. And it is even more beautiful to feel that this return is so warmly and beautifully received by one’s own neighbours, friends, acquaintances and all those who allow art and music to be a major part of a few consecutive days in our Radeče.”

Boštjan Lipovšek, artistic director

Boštjan Lipovšek comes from a musical family that has produced several horn players over the years. His first mentors were his father and brother, and he continued his musical education at the Ljubljana Academy of Music under Prof. Jože Falout. In whose class he graduated and completed his postgraduate studies. He studied with Radovan Vlatković at the Salzburg Mozarteum. During his studies in Ljubljana, he received the student “Prešeren Prize” for his performance of Strauss’s 1st Concerto for Horn and Orchestra with the RTV Symphony Orchestra. Immediately afterwards he took up the position of solo horn in the orchestra.

In 1999 he began teaching as an assistant professor at the Academy of Music in Ljubljana, where he now supervises the younger generations of students as a full professor. In 2005, at the invitation of the Zagreb Academy of Music, he began to lecture as an assistant professor at that institution of higher education. Boštjan was awarded the Prešeren Fund Prize in 2008.


Tanja Sonc has won numerous prizes at national and international competitions. Among others, she won the Brahms Competition in Austria in 2011. In 2015 she won 3rd prize at the Kiwanis Competition in Zurich.

Tanja Sonc studied with Primož Novšak in Ljubljana, as well as with Igor Ozim and Wonji Kim Ozim at the Mozarteum University in Salzburg and with Nora Chastain at the Zurich University of the Arts.

Since the 2017/2018 season Tanja is a member of the Zurich Chamber Orchestra. As a soloist she has played with well-known orchestras and performed concerts in Brussels (BOZAR), Prague, Graz, Trieste, Zagreb, Sofia, Ljubljana, Le Touquet and also in Zurich with the Zürcher Kammerorchester. In 2016 she founded the Sonc Festival, a chamber music festival in Slovenia.

Philipp Wollheim

Philipp Wollheim studied violin at the University of the Arts Berlin with Prof. Nora Chastain, where he graduated with honours from UdK Berlin in 2015. In 2018 he completed his Master’s degree at the ZHdK in Switzerland.

Philipp is the 1st prize winner of the Kiwanis Competition, 2nd prize winner of the Hindemith International Competition and the German Musikleben Foundation Prize.

He regularly performs at German festivals such as the “Festspiele Mecklenburg-Vorpommern” and the “Schleswig-Holstein Festival”. From 2017-2019 Philipp had a temporary contract with the Tonhalle Orchestra Zurich and since 2019 he is a member of the Zurich Chamber Orchestra.

Gea Pantner Volfand (1990) completed her postgraduate studies at the Academy of Music in Ljubljana, where she studied with doc. She studied at the Jagiellonian School of Music in Prague. She has appeared as a soloist with the Slovenian Philharmonic Orchestra, the RTV Slovenia Symphony Orchestra, the Young Ljubljana Soloists Orchestra, etc.

She has won the Škerjanč Prize of the Ljubljana Conservatory of Music and Ballet and the Prešeren Prize of the Academy of Music. She is a member of the Accadémia String Quartet, with which she was also awarded the Prešeren Prize of the Academy of Music.

Since 2012 she has been a regular member of the RTV Slovenia Symphony Orchestra, since 2019 as a solo violist. She works with all Slovenian professional orchestras and regularly performs in chamber ensembles with renowned musicians such as Mate Bekavac, Irena Grafenauer, Boštjan Lipovšek, Andrej Žust, etc. She has also been a member of the EUYO and GMJO orchestras.

Ribal Molaeb

Ribal Molaeb is a Lebanese violist born in Baissour, Mount Lebanon. At the age of 16 he was invited to the “Young Artists Festival” in Bayreuth, Germany, where he gave his first concert in Europe. A year later he started his studies at the Mozarteum in Salzburg with Prof. Thomas Riebel, and later continued his studies at the Universität für Musik und darstellende Kunst in Vienna with Prof. Thomas Selditz, where he graduated with a Master’s degree in March 2018. In 2017 and 2018 he gave two recitals at the prestigious Musikverein in Vienna.

Ribal is a prize-winner of the Margot Babikian Competition. In 2011 and 2012 he attended chamber music courses with Maestro Daniel Barenboim in Berlin. From 2012 to 2018 he regularly participated in the “Hohenstaufen Kammermusik Akademie” in Germany.

Since 2010 Ribal is a member of the “West-Eastern Divan Orchestra” of Maestro Daniel Barenboim.

As a solo violist he played in the “Webern Symphony Orchestra” under the baton of Semyon Bychkov.

In the summer of 2015 Ribal founded the “Molaeb Festival for Chamber Music and Fine Arts” and in 2018 he became the artistic director of the Sumito Foundation in Zurich.

Ribal is also a renowned painter. His work has been exhibited in Paris, Amsterdam, Zurich, Dubai, Beirut and Vienna. He is represented by Galerie Janine Rubeiz (Beirut), Galerie Esther Woerdehoff (Paris) and Galerie Agénor (Zurich).

Katarina Leskovar

Katarina Leskovar performs internationally as a soloist, chamber and orchestral musician and is the recipient of numerous international awards. She is a performer who is constantly searching for parallels between the old and the new, the past and the present, and therefore works in various musical fields.

She has performed at the Warsaw Autumn Festival, Klangspuren Festival, Davos Festival, Carinthischer Sommer, Festival Ljubljana, Kammermusikfestival Hohenstaufen, Beethoven-Haus Bonn, Musikverein Vienna, Alte Oper Frankfurt, Semperoper Dresden, Cité Internationale des Arts Paris and The Concertgebouw Amsterdam.

In 2019 she was a trainee with the Basel Sinfonietta. She was also a member of the Gustav Mahler Youth Orchestra (GMJO), with whom she played under the baton of Herbert Blomstedt, Jonathan Nott and Christian Thielemann in a project with the Staatskapelle Dresden. Katarina has appeared as soloist with the RTV Slovenia Symphony Orchestra and participated in masterclasses with Heinz Holliger, members of the Ensemble Modern, Ivry Gitlis, Wolfgang Emanuel Schmidt, Torleif Thedeen, Wen-Sinn Yang and others.

She is a student at the Basel University of Music, where she completed her first Master’s degree with Danilo Ishizaka, and is currently completing her studies in contemporary chamber music.

Nuška Drašček

Mezzo-soprano Nuška Drašček graduated with honours from the Master’s degree in singing at the Academy of Music in Ljubljana under Prof. Matjaž Robavs (2016). In 2017, she was awarded the Recognition of Artistic Works at the University of Ljubljana.

She is a prize-winner of national and international competitions. In 2012, she sang the role of Laura in P.I. Tchaikovsky’s opera Jolanta on a concert tour with Anna Netrebko, the Slovenian Philharmonic Orchestra and the Slovenian Chamber Choir. Her repertoire includes concert works and performances of Mahler’s Songs of the Earth, Mahler’s Symphony No.2, F. Martin’s Golgotha, L. Lebič’s November Songs, L. Lebič’s Burnt Grass, G. B. Pergolesi’s Stabat Mater, G. Puccini’s Gianni Schichi (the role of La Ciesca). In June 2017, she gave a solo outdoor concert with the Slovene Philharmonic Orchestra as part of the Ljubljana Festival. She started the 2017/2018 season with an original project “Spanish Stories” – together with marimbist Vid Ušeničnik they prepared a half-scene performance or concert in a series of connected Spanish zarzuelas. In autumn 2019, together with pianist Nejc Lavrenčič, she gave a concert with the programme “Lamentations”, which included works by R. Schubert, R. Schumann and G. Mahler (Kindertotenlieder).

Her operatic repertoire includes numerous roles. Bizet’s La Belle et la Bête (the title role of “La Belle”) and Rossini’s Cenerentola (the title role of “Angelina”, with which, in addition to the premiere in Ljubljana, she also opened the 2018/2019 season at the Koblenz Theatre in Germany). In December 2018, she became a soloist of the Ljubljana Opera House; in March 2019, she sang one of the main roles in the new Slovenian opera Koda L (Milko Lazar), and she closed the season as “Isabella” in Rossini’s opera An Italian in Algiers, produced by Zomeropere Alden Biesen in Belgium. In January 2020 she sang the title role of “Ivan” in P.I. Tchaikovsky’s opera The Maid of Orleans to rave reviews, and in March she toured Prague as “Angelina” in Rossini’s Cenerentola. In the last two seasons she sang the roles of “Iocaste” (Oedipus Rex, I. Stravinsky), “Romeo” (I Capuleti e i Montecchi, V. Bellini) and “Siébel” (Faust, Ch. Gounod) at the Ljubljana Opera House.

Nuška has also participated in several musical productions, including the stage productions of the musicals My Songs, My Dreams (2008), Do nazga (2010) and most recently in two roles in the musical Vesna (2017). She has performed various programmes at numerous concerts around Slovenia, most recently “Dedicated to Piaf” (chansons by the famous singer), “A Walk in the West End” (musical) and “Travelling around Slovenia” (Slovenian folk songs). In March 2018 (Gregorjevo), her second studio album dedicated to Edith Piaf, “Re-Belle”, was released; the selected compositions, which have been brought to life in new arrangements, are linked by the poetry of Jacques Prevert, interpreted by Boris Cavazza. The album was released by ZKP RTV Slovenia.

Boštjan Lipovšek comes from a musical family that has produced several horn players over the years. His first mentors were his father and brother, and he continued his musical education at the Ljubljana Academy of Music under Prof. Jože Falout. In whose class he graduated and completed his postgraduate studies. He studied with Radovan Vlatković at the Salzburg Mozarteum. During his studies in Ljubljana, he received the student “Prešeren Prize” for his performance of Strauss’s 1st Concerto for Horn and Orchestra with the RTV Symphony Orchestra. Immediately afterwards he took up the position of solo horn in the orchestra. As a soloist, he has appeared under the baton of such excellent conductors as Anton Nanut, Uroš Lajovic, Marko Letonja, En Shao, David de Villiers, S.Pelegrino Amato, Gary Brain, Amy Anderson, Yakov Kreizberg, Sian Edwards, etc.
As a guest soloist he has appeared with the National Orchestra of La Monnaie Opera in Brussels, the Berlin Symphony Orchestra, the Israel Philharmonic Orchestra, the Mahler Chamber Orchestra, the Australian Chamber Orchestra, the Melbourne Symphony Orchestra, and continues to collaborate frequently with the Budapest Festival Orchestra, the Scottish Chamber Orchestra and Camerata Salzburg.

In 1999 he began teaching as an assistant professor at the Academy of Music in Ljubljana, where he now supervises the younger generations of students as a full professor. In 2005, at the invitation of the Zagreb Academy of Music, he began to lecture as an assistant professor at that institution of higher education. Boštjan was awarded the Prešeren Fund Prize in 2008.

Since 2017 Boštjan Lipovšek has been the artistic director of the international chamber music festival Sonc Festival.

Eva Nina Kozmus

Eva-Nina Kozmus is the only Slovenian winner of the International Eurovision Young Musician Contest, where she won first prize in 2010 in Vienna.

Under the guidance of Prof. Milena Lipovšek she graduated from the KGBL in Ljubljana. In 2015 she completed her Master’s degree at the CNSMD in Lyon in the class of Prof. Philippe Bernold, Gilles Cottin, Julien Beaudiment and Claude Lefebvre.
Eva-Nina is a regular guest at international festivals and concert halls. She has given solo and chamber concerts in many European countries, Russia, Japan and America. She was also part of the Stars von Morgen programme with Rolando Villazón and has recorded for RTV Slovenia, Arte, ZDF, 3sat, etc.

As a soloist she has worked with many orchestras such as the Vienna Radio Symphony Orchestra, Toledo Symphony Orchestra, RTV Slovenia Orchestra, Sarajevo Philharmonic Orchestra, Slovenian Philharmonic Orchestra, Romanian Radio Orchestra, Liechtenstein Symphony Orchestra, Zagreb Soloists, Slovenian Philharmonic Chamber String Orchestra and others, and conductors such as Stefan Sanderling, En Shao, Cristian Orosanu, Cornelius Meister, Vladimir Spivakov. ..

Eva-Nina has been a tutor or co-tutor in many masterclasses in Slovenia and abroad. As a chamber music enthusiast, she participates in various international chamber ensembles and is part of a Slovenian trio with Karmen Pečar Koritnik (cello) and Mojca Zlobko-Vajgl (harp).

She has had the honour to collaborate with several Slovenian and international composers and to give premieres of their compositions. In 2012, a collection of compositions dedicated to her by Slovenian composers was published, entitled “Unhappiness”. In 2019, she made her debut as artistic director of the Alpenarte Festival in Schwarzenberg (Austria), where she also gave the premiere performance of the composition dedicated to her, ” Eva “, by the Irish composer Sam Perkin. As a solo flutist, she regularly works with orchestras such as the Lyon Opera Orchestra, Lyon Symphony Orchestra, Bordeaux Symphony Orchestra, Barcelona Symphony Orchestra, Gran Teatre del Liceu, Paris Chamber Orchestra, Gürzenich Orchestra Cologne, Konzerthaus Orchestra Berlin, Oslo Philharmonic, Mulhouse Symphony Orchestra, etc.

Eva-Nina is currently solo flutist of the Limoges Opera Orchestra in France.

Ognjen Popović was born in Pančevo, where he graduated from junior and secondary music schools. He continued his studies in Stuttgart. He graduated and obtained his Master’s degree at the Munich University of Music, in the class of Professor Ulf Rodenhäuser. Ognjen is a prize-winner of the Felix Mendelssohn Competition in Berlin (1998) and the Music Youth Competition in Belgrade (1997).

As a soloist he has appeared with the Munich Philharmonic, the European Chamber Orchestra, the Radio Orchestra of Valencia and the Belgrade Philharmonic. As a solo clarinettist he has worked with the Stuttgart State Opera Orchestra, the Passau Symphony Orchestra and the Festival Orchestra of Maribor.
Popović is solo clarinettist of the Belgrade Philharmonic and founder of the chamber music ensemble Balkan Chamber Academy. Since 2010 he has been a professor at the Faculty of Musical Arts in Belgrade. He also teaches at masterclasses in Germany, Spain, Montenegro and Serbia.

Ognjen Popović is the artistic director of the chamber music festival Classic fest in Pančevo.

Nenad Janković graduated and completed his Master’s degree at the Faculty of Musical Arts in Belgrade in the class of Prof. Mirko Isaeski. He is the founder of the wind trio and later the wind quintet of the Belgrade Philharmonic and co-founder of the chamber ensemble “Balkan Chamber Academy”.

In 1995 he was a solo bassoonist in the Orchestra of Young Mediterraneans, and currently he is a solo bassoonist of the Belgrade Philharmonic, and as a guest soloist he also participates in the orchestra of the chamber opera “Medlanianum” and the Vojvodina Symphony Orchestra.

As a soloist he regularly performs with the Belgrade Philharmonic Orchestra, the Military Symphony Orchestra, the Belgrade String Orchestra “Dušan Skovran”, the String Orchestra “Sv.Djordje” and the chamber ensemble “Yes”-(Youth European Strings).

He has won several first prizes at former federal competitions and was also awarded first prize at the International Competition in Stresa (Italy). In 1995, the City of Belgrade awarded him the “October” prize for his achievements in the field of music.

He has studied with Knut Sonstevold in Sweden, Milan Turkovic in Austria and Maurice Paes in Israel.

Since 2018 he has been a lecturer at the Academy of Arts in Novi Sad.

Nenad plays a handmade bassoon model “Milan”, made with a lot of love by Mr. Zivan Šarčević.

Lorenzo Cossi, a pianist from Trieste, completed his studies at the local conservatory and then went on to further his studies at the International Piano Academy “Lago di Como” and the “Accademia Chiagana” in Siena, among others. His repertoire ranges from Baroque to contemporary music, with a special emphasis on jazz and other styles. Winner of several internationally renowned competitions, he was named one of the five finalists in the “Honens” competition in Calgary (Canada), where he performed Brahms’ First Piano Concerto in D minor with the Calgary Symphony Orchestra to great acclaim under the baton of Robert Minczuk. The Cicinnati Enquier wrote of the performance: “Cossi’s technique and control of sound are astonishing. He played with a sumptuous, orchestral tone, yet never forgot subtlety.”

He performs extensively in chamber ensembles with Christian Poltero, Johannes Moser, Ester Hope, Walter Auer, Goeff Nuttall and Sebastjan Bertoncli.

Lorenzo is Professor of Piano at the Carinthian Regional Conservatory in Klagenfurt.

Dudu Carmel

Dudu Carmel, currently principal oboist of the Israel Philharmonic Orchestra and professor at the Universities of Jerusalem and Tel Aviv.
In 1996 he won the prize at the International Oboe Competition in Toulon, France, and in 1990 the François Shapira Prize in Israel.

He has appeared as soloist with the Israel Philharmonic Orchestra under Zubin Mehta, the Budapest Festival Orchestra under Ivan Fischer, the Quebec Symphony Orchestra under Yoav Talmi, and numerous other orchestras in Canada, Chile, Costa Rica, France and Poland.

In addition to teaching masterclasses all over the world, Carmel co-leads an annual masterclass with Professor Thomas Indermühle, founder of the Oboe Festival in Palma de Mallorca, Spain.

Carmel studied at the Rubin Academy of Music in Tel Aviv, before receiving his KA degree from the Staatliche Hochschule für Musik Karlsruhe under Professor Thomas Indermühle.
Carmel is a founding member of the Israel Woodwind Quintet and has recorded CDs for the Israel Music Center, Camerata, Meridian, Centaur Records and DUX.



Friday, 8.7.2022 at 19.30

St. Peter’s Church, Radeče

  • Georg Philipp Telemann: Horn Concerto in D major
  • C.Ph.E.Bach: Flute Concerto in D minor, Wq 22, H425
  • J.S.Bach: Double Concerto for Violin and Oboe in C minor BWV 1060
  • George Frideric Händel:
    • O though that tellest good tidings to Zion (from the oratorio Messiah)
    • Lascia ch’io pianga
    • George Frideric Händel: Overture HWV 342

2. Chamber Concert

Saturday, 9.7.2022 at 19.30

St. Peter’s Church, Radeče

  • Wolfgang Amadeus Mozart: Quintet for Wind Instruments and Piano in E-flat Major, K452
  • Sergei Rachmaninoff: Trio élégiaque No.1 in G minor
  • Carl Reinecke: Trio in A minor, Op.188 (oboe, horn, piano)

3. Chamber Concert

Sunday, 10.7.2022 at 19.30

St. Peter’s Church, Radeče

  • Carl Maria von Weber: Clarinet Quintet in B flat major, Op.34
  • Béla Bartok: Romanian Dances for string quartet
  • Johannes Brahms: String Quintet No.2 in G major, Op.111


Občina Radeče
Mitja Resnik Photography
Ribiška družina Radeče
Prevzgojni dom Radeče
Zavarovalnica Triglav


KUD Sonc

Kulturno umetniško društvo Sonc

Cesta za gradom 4a

1433 Radeče

Donations can be made to:

IBAN: SI56 6100 0001 6378 894

REFERENCE: SI 00 05032017


For more info:

041 775 844