Gideon Berger has co-created something amazing with Glastonbury Festival’s Block9 field, but it’s been somewhat to the detriment of his own DJ career. In recent years, though, he’s ramped up his own DJing activity — as Gideön — and now gets booked to spin his delicious dubbed-out deep house in places well beyond the LGBT and squat party zones in which he built his rep. DJ Mag meets the former traveller for whom music has to have a purpose...