"Andy Moor [aka Andy Ex] (born 1962) began his musical life in Edinburgh, Scotland playing guitar with Dog Faced Hermans, an eclectic group that mixed post-punk energy with traditional tunes and improvisations. In 1990 he moved to the Netherlands after an invitation to join Dutch band The Ex. In 1995 he began another group, Kletka Red with Tony Buck Joe Williamson and Leonid Soybelman, fusing traditional klezmer, Greek and Russian songs with their own styles of playing.

Moor's own background is rooted in the post-punk Britain of the 1980s, but in more recent years he has collaborated with many musicians from varied backgrounds and disciplines. Many of these collaborations are duos, with amongst others Cypriot composer Yannis Kyriakides with whom he performs a set of rebetika songs (urban Greek tunes from the 1920s and 1930s), French sound poet Anne James Chaton, ex bass player from Dog Faced Hermans Colin Mclean, who now works with electronic music and live sampling, Brooklyn-based DJ, producer and writer DJ /rupture, and Lebanese Paris-based saxophonist Christine Abdelnour.

Moor has also begun composing soundtracks for films, working former Dog Faced Hermans vocalist-turned filmmaker Marion Coutts, with Iranian filmmaker Bani Khoshnoudi and US experimental filmmaker Jem Cohen. His latest projects include a quartet with Ken Vandermark, Terrie Ex and Paal Nilssen-Love called Lean Left, a trio with Berlin-based artists and musician Alva Noto and Anne James Chaton called Decade, and a trio project with Anne James Chaton and Thurston Moore called Heretics. In 2013 he began a duo project with John Butcher. Moor lives in Amsterdam at present and continues to be a full-time member of The Ex. He is a founding member of the music label Unsounds, in Amsterdam, with Yannis Kyriakides and Isabelle Vigier."

"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."