found: Free jazz and improvisation on Vinyl 1965 - 1985, 2014:colophon (Swedish musician and composer Mats Gustafsson is is an important presence on today's jazz scene)
found: Wikipedia UK www site, viewed 30 September 2014:Mats Gustafsson page (Mats Olof Gustafsson (born 29 October 1964) is a Swedish saxophone player and a stalwart on the Scandinavian free jazz scene. He is known for his tonal belligerence and intensity when improvising)
found: Mouth eating trees and related activities, 1996:container (Mats Gustafsson, fluteophone/tenor & baritone saxophones)
found: European Free Improvisation Web site, Jan. 14, 2010(Mats Gustafsson; b. 1964, Umeå, Sweden; all saxophones, fluteophones, flutes, weevil sax, amplified saxophones, and live-electronics)