 Mats also started a larger ensemble ‘Rubicon’ with saxophonists Trygve Seim & Eirik Hegdal, Rob Waring on vibraphone, guitarist Thomas T Dahl and Finnish drummer Olavi Louhivuori.Harmen is also sideman in the Clemens van der Feen quartet and guest with the Pit Dahm trio.Harmen is in the faculty of the Conservatory of Amsterdam.