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Our Story

Our Story

Bonded by a musical consensus and shared vision, the Heathcliff Trio was founded in late 2020. Emanated from a decade-long collaboration between childhood friends Ashley Tong and Sebastian Kolin, who studied together at the Yehudi Menuhin School, they encountered Danish pianist, Jonathan Siahaan, upon completing their studies, whose resonating philosophy pronounced himself the final choice of a long-lasting search.


The Heathcliff Trio recently won 1st prize in The 9th International Johannes Brahms Chamber Music Competition (2022) with two additional special prizes including the best interpretation of a piece by Brahms. In season 2021/2022, The trio made their debut at Wigmore Hall for the final concert of The Parkhouse Award international competition for chamber music and at 22 Mansfield Street in London.


Despite their short existence, the trio brings together their extensive individual experiences in chamber music, which include collaborations with artists such as Nikolaj Szeps-Znaider, Kathryn Stott, Enrico Pace, and Barnabas Kelemen, and continues to strive towards the discovery of their own expression, which has brought them to perform in venues such as Konservatoriets Koncertsal, Studiescenen, Havesalen, Ansgar Kirke, Teatro Dengra in Spain, Gewehrhaus Schloss Weikersheim in Germany, and Oslo Chamber Music Festival.

The Heathcliff Trio is currently based in Copenhagen under the guidance of Tim Frederiksen and has received further tutelage from Johannes Meissl, Caroline Palmer, Members of the Cuarteto Casals and Danish String Quartet, Magnus Ericsson, and Marianna Shirinyan. From Autumn 2022, the trio will become members of the European Chamber Music Academy.

The Trio

The Trio

Ashley Tong

British-Taiwanese violinist Ashley debuted with The Taipei Symphony Orchestra at the age of 8 after winning the ‘Young Soloist competition’. She has since appeared at the Wigmore Hall, the Barbican Hall, St. Martin in the fields, the Royal Festival Hall, Menuhin Hall, The National Gallery in London, Taiwan National Concert Halls, Wien Musikverein, Wiener Konzerthaus, Graz Musikverien, Bösendorfer Saal in Austria, Crystal Hall in Asahikawa, Japan, Dramaten and Kungasalen in Stockholm, and Konserthuset Stockholm. 


An avid chamber musician, Ashley is the violinist and co-founder of The Heathcliff Trio. She has also performed with distinguished musicians such as Lev Klychkov (Concertmaster of St. Petersburg Philharmonic Orchestra), Günter Seifert (1st Violin of Wiener Philharmoniker), Barnabas Keleman, and Kathryn Stott. Her festival appearances include K&M Fest Stavanger, Britten Pears Festival and Aurora Festival, where she led the Aurora Symphony Orchestra as concertmaster in two consecutive years under the baton of Jukka-Pekka Saraste in collaboration with Leonidas Kavakos and Mischa Maisky.


Over the years, Ashley has received accolades from esteemed artists such as Schmuel Ashkenasi, Michael Frischenschlager, and Thomas Brandis. Born in 1993, She started playing the violin at the age of 7, studying with the violinist-conductor, Drapal Liao. After graduating from The Yehudi Menuhin School with Lutsia Ibragimova, she studied at The Guildhall School of Music and Drama with Krzysztof Smietana, and Kunst Universität Graz with Eszter Haffner. Currently based in Copenhagen, Ashley completed her Master's degree at The Royal Danish Academy of Music with Tim Frederiksen and Peter Herresthal.

Sebastian Kolin


Sebastian Kolin began playing the cello aged 7 studying with Wendy Max at the Junior Royal Academy of Music, soon after he began studying privately with Naomi Butterworth and later Melissa Phelps. During this time he was a prizewinner in numerous youth competitions across England including the Blackheath Festival North London Festival among others.

He has participated in festivals, masterclasses and lessons with Bernard Greenhouse, Leonid Gorokhov, Guy Johnston, Mark Gothoni, Ralph Gothoni, Heinrich Schiff, Gary Hoffman, Johannes Goritzki, Enrico Dindo, Paul Katz, Mauro Valli, Simon Fontinelli, Carl Schacter, Levon Chilingirian, David Eggert, Reinhardt Latzko, the Linsey Quartet the Allegri Quartet 

and the Wihan Quartet.


He has performed across Europe in countries including France, Germany, Spain, Italy, Poland, Denmark and Norway, made television and radio appearances in Switzerland and played in many of Londons main venues including the Wigmore Hall, the Festival hall, the Purcell room, the Fairfield hall, the Queen Elizabeth hall, the Menuhin Hall and the Elgar Rooms of the Albert Hall. Sebastian has also recorded on a CD of new music by Cheryl-Frances Hoade,'The Glory Tree', accompanying Leonid Gorokhov in small ensemble for Champs Hill Records.

Sebastian completed his Bachelor of Arts degree studying with Johannes Goritzki and Enrico Dindo in Lugano, Switzerland, at the Conservatorio della Svizzera Italiana whilst also being accepted into the class of the Cremona Quartet at the Walter Stauffer Academy in Cremona, Italy.

Jonathan Siahaan


Jonathan Siahaan (b. 1989) is a young Danish pianist who resides in Copenhagen and completed his soloist diploma at The Royal Danish Academy of Music with Professor Jens Elvekjaer. He began taking private piano lessons at the age of 6 with Japanese teacher Kyoko Kato and 3 years later with Bella Zapolski.

At the early age of 12 he had his first professional appearance on the public scene performing Chopins Piano Concerto no. 1 with Copenhagen Festival Orchestra.

Jonathan Siahaan has achieved several national prizes including 1st prizes in all age categories and V.I.P. prize in the national Steinway Piano Competition, Gold medal in Berlingske Tidendes Music Competition, 1st prize in Danish Radiocast Competition “Spil for livet” which was broadcasted on national television, and 1st prizes in The Royal Danish Academy of Music Piano Competition in 2016 and 2018. Jonathan Siahaan has been honoured and supported by a number of Danish foundations including DR Emil Holms Mindelegat, Den Berlingske Fond, Jacob Gade Talentpris, Jacob Gade Store Legat, Bernhard Rosenfelds Legat, Wilhelm Hansens Fonden and Odd Fellow Ordenens Legat etc. In 2019 he released a piano album on Dacapo Records with pieces written by contemporary Danish composers.


He has performed as soloist with orchestras such as Odense Symphony Orchestra, Danish National Chamber Orchestra and Danish National Symphony Orchestra and had his first solo recital in Tivoli Concert Hall in 2012 which was highly acclaimed by the press.


Beside his appearances as a soloist, Jonathan is also an active chamber musician and accompanist, he established Heathcliff Trio in 2020 with Ashley Tong, violin and Sebastian Kolin, cello and and has received chamber music lessons from Trio con Brio Copenhagen, Lars Anders Tomter, Tim Frederiksen, Kathryn Stott, Eszter Haffner and Gerhard Shulz. He as performed with established musicians such as Nikolaj Sczeps-Znaider, Enrico Pace, Sergei Malov, Andrei Bielow, and Andreas Brantelid. His chamber music festival appearances include Hindsgavl Festival and Kerteminde Chamber Music Festival. In 2016 and 2019 Jonathan was appointed a permanent accompanist for the contestants in The 10th Carl Nielsen Violin Competition and The 11th Carl Nielsen Violin Competition.

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