One of our must-see acts at this year’s KnockanStockan in Co. Wicklow this weekend, Dublin threesome Slouch are in a league of their own here when it comes to fuzzed-out, curveballing alt-rock that hits that rare sweet spot between scuzz, low-end groove, intricacy and abandon. A textbook case in point, brand new single ‘Petty Sounds’ – which we’re pleased to premiere below – will be familiar to anyone who has caught Conor Wilson, Kev Shannon and Malachy Burke live over the last couple of years. Littered with submerged arpeggios and eruptions of amp-choking noise, it’s the sound of walking through a…