Henk Zwerver is a guitarist and improviser who has been active in Amsterdam’s free-improvisation community since 2015, following a career across several musical styles. His work develops through both spontaneous encounters and sustained ensemble relationships. His groups include Zwerv, Zyft and the trio with Wim Janssen and Aaron Lumley, as well as a trio with Wilbert de Joode and Michael Vatcher. Together with Raoul van der Weide, he organised All String Nights, creating a meeting place for improvising string players.