Mutations Festival

For two days each autumn, the centre of Brighton becomes a walkable circuit of small clubs, back rooms and grassroots venues, with a single wristband granting entry to all of them. The focus is on artists working at the edges of indie, rock, experimental and electronic music, with a bill that mixes established names alongside acts still building their reputations. Rooms are small, sets are short, and clashes are unavoidable, so the weekend rewards planning and a willingness to wander between doorways rather than settling in one place. Sets run from mid-afternoon into the early hours, and the compact geography means moving between shows takes minutes on foot. Held indoors and strictly for over-18s, it suits people who follow new music closely, enjoy the intensity of small venues, and prefer discovery over a headline-led lineup.