- years active is 1989 -- present - genre is jam rock , stoner rock rock , progressive rock , krautrock , space - background is group_or_band - website is http://www.trigon.in/ - current members is rainer -rrb- rudi metzler -lrb- since 2009 -rrb- lange -lrb- founder -rrb- stefan lange -lrb- founder Given the details above, guess who could this information be about.
trigon -lrb- german band -rrb-