Eduardo Paredes - Crespo

Bolivian/Brazilian violinist Eduardo Paredes Crespo began his musical studies in Cochabamba, Bolivia. Aged 14 he received a scholarship from the Rotary Club that made it possible to study and live in the Netherlands, where he then studied with Hans Scheepers, Ofer Falk, Pinchas Zukerman at the Manhattan school of Music,  Gordan Nikolic, Joan Berkhemer, graduating from the Rotterdam Conservatory with a Master of Music degree in 2010. He has received regular coaching from P. Vernikov, Robert Cohen, J. Rouvier, D. Ferschtman, Per Nystrom and from the members of the Vermeer, Fine Arts, Alban Berg and Parkanyi quartets. 

Eduardo performs regularly as soloist, chamber musician and in orchestras, he has given concerts in several countries in South America, Europe, South Africa and China, both as chamber musician and soloist, having given recitals in Carnegie Hall (Weill recital hall 2008 and 2019) in New York and Amsterdam's Concertgebouw among others. He plays chamber music  with the Hydra  String Quartet, Pianotrio 258, contemporary music with the New European Ensemble, in various festivals as guest artist and is a member of the Aurora Chamber Orchestra which is based in Sweden. He also conducts and leads a string orchestra in Amsterdam, and enjoys teaching. In 2018 he was finalist of the World Debut auditions of the New York Concert Artists and prize winner at IBLA competition. 

Eduardo plays on a H. Fagnola from 1925 violin on loan from the Nationaal Muziekinstrumenten Fonds of The Netherlands.

Ephraim Feves

Ephraim Feves (1983) is an Amsterdam based Dutch/American violinist from a musical family. 

After a brief escapade in academics in his early twenties, Ephraim studied violin at the Conservatory of Rotterdam, first with Misha Furman, and then with Vesna and Igor Gruppman.

Highlights from his time in Rotterdam include masterclasses with Schlomo Mintz, James Ehnes and Benjamin Schmid, string quartet coaching from members of the Ruysdael quartet and orchestral training with principal players of the Rotterdam Philharmonic.

Ephraim loves jazz music, and in addition to his conventional classical training in Rotterdam, he studied modern jazz improvisation extensively with tenor Saxophonist Simon Rigter. He was a member of a jazz-fusion ensemble for a number of years and enjoys playing contemporary music that involves some form of improvisation.

Ephraim currently performs chamber music regularly with the Hydra Quartet and a number of other chamber music ensembles in venues all over the Netherlands. Also, he is a member of Sinfonia Rotterdam and plays often with the South-Netherlands Philharmonic. He is in the process of sharpening his composing and arranging skills for upcoming projects.

Ephraim plays a modern violin built in 2010 by Andranik Gaybaryan.

Mark Mulder

Mark studied viola at the Royal Conservatory in The Hague with Ferdinand Erblich and Liesbeth Steffens and in Cologne, Germany with the Alban Berg Quartet. 

For a number of years he was a member of the Dudok Quartet, with whom he gave many recitals in the established concert halls of the Netherlands and abroad. 

At that time he was also principal violist of the National Dutch Youth orchestra, the Ricciotti Ensemble and the Magogo Chamber-orchestra. 

Currently he plays in different chamber music formations such as The Dutch String Collective, String Trio Europe, and the Hydra String Quartet. Also, he frequently plays as a substitute in various orchestras, which include the Netherlands Chamber Orchestra, Netherlands Philharmonic Orchestra, Residentie Orkest and Philharmonia London. 

Mark plays on a M. Cornelissen viola, on loan to him from the Dutch Musical Instruments Foundation

Giorgos Kotsiolis


Born in 1989, Giorgos Kotsiolis started playing piano at the age of three and cello at the age of five. At the age of eight he performed solo the cello concerto in C minor by Johann Christian Bach with Volos’ symphony orchestra under Simeon Kogan. He has also performed as a soloist with the Radio-Symphonic Orchestra of Greece (ERT) under Alkis Mpaltas, Patras’ symphony orchestra under Saulius Sondeckis and Utrecht String Orchestra under Mikhail Zemtsov. He has received masterclasses from worldwide famous teachers such as Frans Helmerson, Gary Hoffman, Anner Bijlsma, Gavriel Lipkind, Floris Mijnders, Reinhard Latzko, Ivan Monighetti and Jens-Peter Maintz.  In 2009 he arrived in Holland to study under the guidance of Timora Rosler in Utrecht where he received his Bachelor degree and in 2017 he received his Master degree in Amsterdam where he studied with Dmitri Ferschtman. Giorgos Kotsiolis is an active chamber- and solo musician. He has performed in Patras, Athens, Thessaloniki, Liege, Yerevan, Istanbul, Ankara, Davos, Braga, Lübeck, Dijon, Utrecht, Amsterdam, Tillburg, Den Haag, Maastricht in concert halls such as Concertgebouw, Muziekgebouw aan ’t  IJ, De doelen, Tivoli Utrecht Oper Stuttgart, Megaron Athinon and as an orchestra player he regularly substitutes orchestras such as the Radio Filharmonisch Orkest, the Nederlands Kamerorkest, Nederlands Philharmonic, Residentie Orkest and others. He has performed with contemporary ensembles such as Asko|Schönberg, Slagwerk den Haag and Insomnio among others. In 2018 he recorded for “En Synolo” for the Second National Channel of Greek television (ERT2). In 2014 he recorded for “Opium” in Radio 4 and played in Vrije Geluiden. Giorgos Kotsiolis is a sponsored artist by the “Onassis” foundation and plays on a Sébastien Philippe Bernardel cello and a James Dodd bow kindly loaned to him by NMF. Giorgos Kotsiolis is also an active teacher with many students in Amsterdam and Utrecht.