Ensemble CV

Early music ensemble The Counterpoints truly began in 2011 when recorder player Thomas Triesschijn and harpsichordist Aljosja Mietus began playing together as a duo. The two have performed in European chamber music series and festivals, sharing a special interest in the contrapuntal music of J.S. Bach and the interplay of their musical voices. By 2015, Thomas and Aljosja began to think bigger. They envisioned a group with core members but flexibility in instrumentation, to explore an even wider range of repertoire and colours. They then began to perform with cellist Petr Hamouz and guest musicians in trio and quartet formations, called The Counterpoints. The Counterpoints, all recent graduates of the Royal Conservatoire of The Hague and University of the Arts Utrecht, have performed together internationally across Europe, and competed as finalists in the York Early Music International Young Artists Competition and the göttingen händel competition. Their most recent engagements have included performances at the International Chamber Music Festival Utrecht, Grachtenfestival in Amsterdam and Bachfestival Dordrecht, and appearances on Brava TV, NDR Kultur, BBC Radio 3 and NPO Radio 4.

Find out more about our individual members here:

Aljosja Mietus


Aljosja Mietus (The Netherlands, 1990) received his first piano lessons when he was eight years old, but switched to the harpsichord at the age of twelve, having lessons with Menno van Delft and later with Tilman Gey. After finishing his secondary education at the Barlaeus Gymnasium in Amsterdam, he started his Theology studies at Leiden University where he graduated in 2012. During his Theology studies he started his harpsichord and basso continuo studies at the Royal Conservatoire of The Hague with Jacques Ogg and Patrick Ayrton. He finished his Bachelor’s in 2014 and started his Master’s at the same institute with Jacques Ogg and Kris Verhelst, for which he graduated cum laude in 2016. ​

Aljosja has performed in The Netherlands, Belgium, Germany, Italy and Singapore and worked with conductors such as Pieter-Jan Belder, Peter van Heyghen, Masaaki Suzuki and Charles Toet. He has performed at various renowned music festivals, such as the chamber music festival Utrecht, the chamber music festival Den Haag and the Bachfestival Dordrecht. He is the principal organist of the DEG in Amsterdam and is also active as a harpsichord teacher. ​

In 2011, Aljosja and recorder player Thomas Triesschijn formed a duo, and recently released their debut album "Inspiring Bach" (2015). Since then their duo expanded to a quartet called The Counterpoints.

Thomas Triesschijn


Thomas Triesschijn (The Netherlands, 1992), began his musical studies with choral and recorder lessons at the age of seven with Willem Blonk. In 2005, he was admitted to the School for Young Talent (SfYT) to study with Dorothea Winter at the Royal Conservatoire in The Hague. There, he combined music education and performance experience with his secondary school studies. In 2010, the same year he graduated from the SfYT, Thomas was one of the four finalists in the Dutch national finals of the “Eurovision Young Musicians Competition 2010” where he appeared on national television (NPS) as a soloist with Holland Symfonia, conducted by Otto Tausk. In April 2011, Thomas won first prize during the finals of the “Princess Christina Competition” in Rotterdam. After earning a Bachelor of Music from the Royal Conservatoire of The Hague, studying with Dorothea Winter, he completed his master's degree in 2016 at the HKU University of the Arts Utrecht with Heiko ter Schegget.

Thomas focuses on the performance of both early and contemporary music. Composers like Wilbert Bulsink, Patrick van Deurzen and Quinn Jacobs have written pieces for him. He has performed in The Netherlands, Belgium, Germany, Italy and The Czech Republic, and worked with conductors such as Peter van Heyghen, Erik van Nevel, Wim Steinmann, Otto Tausk and Charles Toet. In May 2014, he participated in the opera- and DVD-production of “La troupe d’Orphée” with Vox Luminis and Opera2Day conducted by Hernán Schvartzman. He has performed at various distinguished music festivals such as the Grachtenfestival Amsterdam (2010 & 2011) and the International Chamber Music Festival of Janine Jansen in Utrecht (2011, 2012, 2014 & 2016). He also regularly performs in the Classic Express, the world’s only mobile concert hall. Along with his performing activities, he is active as a recorder teacher. In the summer of 2011 Thomas played the main role in “The Violet Hour”, a short film directed by Felix van Cleeff. ​

In 2011, Thomas and harpsichordist Aljosja Mietus formed a duo, and recently released their debut album "Inspiring Bach" (2015). Since then their duo expanded to a quartet called The Counterpoints.

Petr Hamouz


Petr started playing the cello at the age of six and later studied at The Prague Conservatory with Tomáš Strašil. During his studies he developed an interest in early music performance practice. He attended many summer courses and participated in masterclasses with eminent performers, these include Jennifer Morsches, Bruno Cocset, Christophe Coin, Hidemi Suzuki, Irmtraud Hubatschek. ​

After completing a bachelor degree at The Charles University in Prague with Marek Štryncl, Petr moved to The Hague where he studied at the Royal Conservatory with Lucia Swarts and Jaap ter Linden. In 2014 he received his 'Master of Music' diploma Cum Laude 'for his individuality and personality in achieving this result and accomplished leading of the orchestra in the cello concerto C major op. 4 by Antonín Kraft'.

Since 2004 Petr has performed and participated in recordings with numerous ensembles, focusing mainly on repertoire composed between 1650 and 1900. These include Collegium Marianum, Capella Regia Praha, Musica Florea and Ensemble Inégal. Through a collaboration with the ensembles Musica Florea and Le Poéme Harmonique, he participated in a reconstruction of the comédie ballet by Lully and Moliére, Le Bourgeois Gentilhomme, in France and Poland in 2009. ​

In the years 2010 and 2011 Petr took part in a reconstruction of a historical opera performance of 'Intermezzo giocoso' 'Dove e amore e gelosia' by Giuseppe Scarlatti, performed originally in 1768 and then after almost 250 years revived in the same historical environment of The Baroque Theatre at Český Krumlov castle. ​ For season 2012/13 Petr was invited to join the European Union Baroque Orchestra, and attended exciting tours led by Lars Ulrik Mortensen, Margaret Faultless, Riccardo Minasi and Paul Agnew. In the same year Petr joined ensemble Radio Antiqua, with whom he regularly performs. Among their greatest achievements include winning both jury’s and public’s prize at the 2013/2014 Göttingen Historical Music Series. Radio Antiqua has been invited as Artist in Residence of the Centre Culturel d’Ambronay, Collegio Ghislieri in Pavia, and supported by Eeemerging recorded their first CD “Forgotten Treasures of the German Baroque” released by Ambronay Editions in October 2015. Radio Antiqua formed the core of the 2015 European Baroque Academy during an extensive European tour, directed by Enrico Onofri.

Anna Jane Triesschijn


Anna Jane Triesschijn (United States, 1991) began her violin studies at age four in Jacksonville, Florida. Studying with Melissa Barrett, she served as concertmaster of the Florida All-State Orchestra and the Jacksonville Symphony Youth Orchestra, and performed as a soloist with the Jacksonville Symphony Orchestra in 2007 and 2009 as a two-time winner of the Young Artists Competition. Most recently, she performed as a semi-finalist in the International Competition Musica Antiqua 2017.

Anna Jane first encountered baroque violin during her bachelor's, studying violin performance with Cornelia Heard at Vanderbilt University. Feeling an immediate connection with the musical language of the baroque, she took secondary lessons in historical performance with Karen Clarke and attended The Juilliard School for a Master of Music in Historical Performance, studying with Monica Huggett and Cynthia Roberts. She has since moved to the Netherlands, studying at the Royal Conservatoire in The Hague with Walter Reiter and Kati Debretzeni.

As a baroque violinist, Anna Jane has performed with the Internationale Händel Festspiele Göttingen Orchestra with Laurence Cummings, Holland Baroque, PRJCT Amsterdam with Maarten Engeltjes, Collegium Ad Mosam, and Collegium Musicum Den Haag. She has also performed at the Smithsonian Institute, Lincoln Center, The Concertgebouw and Muziekgebouw in Amsterdam, Podium Witteman, and the Festival Oude Muziek Utrecht, and participated in young artist courses with the American Bach Soloists, Tafelmusik, and the Britten-Pears Baroque Orchestra. During her studies, she has played under the direction of renowned musicians William Christie, Richard Egarr, Jordi Savall, Nicolas McGegan, Masaaki Suzuki, Rachel Podger, Ton Koopman, and Kristian Bezuidenhout. She has also played in masterclasses and coachings for Harry Bicket, Christopher Hogwood, Fabio Biondi, Lars Ulrik Mortensen, Beatrice Martin, Pavlo Beznosiuk, Kenneth Weiss, Jeanne Lamon, Robert Mealy, and Robert Levin.

Anna Jane is an avid chamber musician and is especially passionate about music education, teaching Kindermusik and creating educational concerts.