Their impetus motivated by the 60's & 70's London improv scene, epitomized by Derek Bailey's Company group, guitarist Dirk Serries leads this assemblage of quick-witted improviser as they challenge each other through pointillistic and sublime passages; from Tom Jackson (clarinet), Colin Webster (sax), Martina Verhoeven (piano), Dirk Serries (guitar) & Teun Verbruggen (drums).

Exploring long tones and harmonic interactions of consonance & dissonance through a slowly rotating and patiently evolving series of tones with each of the players in the Tonus trio doubling on wind instruments, as performed by Dirk Serries on soprano melodica & accordion, Martina Verhoeven on concertina & cello, and Colin Webster on clarinet & alto saxophone.