The Soul Destroyer are a wonderfully prolific live act, so it’s probably inevitable that when they’re invited back to address a small but vocalised crowd at Tech House Festival in Edinburgh, it’s going to be a heavy, heavy set. The Soul remains a dynamic duo, with bass and drums of a higher order. The opener “Another Death’s Spill” is a subtle and sustained introduction, but the quieter of the two, the a cappellas on “Another Death’s Spill”, tend to be satanic and pentad chordal, never going full out, and the effect is significant: an almost startling contrast with the surface throb of a heavier groove. When the band return to their pre-Tech House groove, it’s a more cheery and confident affair, with a bouncy groove and a cool closing track with a rousing solo.