"Pianist Marta Warelis (1986) is a vibrant performer with a strong preference for improvisation and experimentation in all genres. She continually aims for instant composing on the basis of new sounds and influences. Her work draws inspiration from music across the globe including cumbia, Angolan dance music, as well as jazz, western classical music and the various schools of free improvisation. Born and raised in Poland where she graduated with honours from WSJiMR in Wroclaw, Marta moved to Groningen in 2010 to attend the Prins Claus Conservatory. In 2014 she found her place in Amsterdam, very quickly becoming an active member of the local improvisers' scene. Marta has appeared frequently in the Bimhuis, where in 2017 she was given a Carte Blanche in recognition of her remarkable talents. She performs with a variety of creative musicians including Michael Moore, Ab Baars, Mike Reed, Andy Moor, Joost Buis, dancers Lily Kiara and Michael Shumacher, as well with such groups as Hupata!, Omawi, Future Neighbor, Polyband, Edge Ensemble, Strings5, Xavier Pamplona, Warelis/Rosaly/Lumley/Dikeman and Bazooka."

Jacob Plooij is an Australian-born violinist, based in The Netherlands. He is a member of groups Amsterdam Sinfonietta, Elastic Jargon, Marieke de Bruijn String Quartet, Strings5, and Zephyr Quartet.

"Raoul van der Weide (Fontenailles / Fr, 1949) played 6 years of classical violin in the Northern Netherlands Youth Orchestra. As a bassist he developed largely autodidactic but also studied classical double bass at John Clayton and Norma Brooks. Contrast point at Guus Janssen. Feel inspired by inspiration and improvisational practice in the free but unstructured views of various musicians like Paul Termos, Guus Janssen, Lennie Tristano, Misha Mengelberg, Jimmy Giuffre, Steve Lacy, Ornette Coleman, Derek Bailey, Charles Mingus and Munir Bashir.

As an improviser, the creative focus is on the development possibilities of open personal aesthetics in the broadest sense. The continued deepening of its own sound, intonation and power of expression - of the musical fingerprint - is considered important.Van Raoul van der Weide published the solo CD 'Passages' (GeestGronden # 24 / www.geestgronden.com) at the beginning of 2006, to which De Volkskrant and promising 4 stars discussion was dedicated.

Worked together in Bert Koppelaar's POINT OF ORCHESTURE, Paul Termos Trio, Guus Jansen Septet / Octet / Orchestra, Burton Greene Quartet / Trio Spazio Trio (with K. Bauer and Guenther Sommer), Luc Houtkamp Quartet, Ab Baars Sextet, Peter Zegveld projects ('Caspar Rapak' and 'Statua Tumultus'), The Gravitones (Winners Dordtse Jazz Prize 1995), Joost Buis & The Famous Astronotes, Sound-Lee! Quartet ('Plays the Music of Lee Konitz'), New Crosscurrents Sextet."

Henk Zwerver is a Netherlands based guitarist and improviser. He has participated in groups Strings5 and Zwerv, and has performed with Raoul van der Weide, George Hadow, Ziv Taubenfeld, and Luis Vicente.

Jan Nijdam bass guitar and contrabsass: Jan Nijdam graduated in 1986 from the Sweelinck Conservatory in Amsterdam. He directs the Jan Nijdam Kwartet, and is a member of Strings5.