How do you grow old gracefully when you make dance music, a genre that more than any other is predicated on all that is youthful, reckless and carefree? It’s a question that many of us have (and will) continue to ponder, not least these two groups, whose members are all unlikely to see 29 again.

Hot Chip are dance music’s eccentric uncles; five (or six with drummer Rob ‘Grovesnor’ Smeaton) odd-looking fellows who bob excitedly behind their keyboards, sashay around between instruments and genuinely look like they’re having a lot of fun. The Chip template is well worn now and it’s all about grooves. They establish one, gradually build it up, embellish it with nagging little figures until resistance is utterly futile. Tracks like One Life Stand and Ready For The Floor are now as comfy as good pair of slippers and go down as easily tonight as a warm mug of cocoa.

While Hot Chip slip cozily into their dotage, James Murphy has come up with another, rather more drastic solution to impending irrelevance. Split up and leave ‘em wanting more. It’s a courageous move, especially as on tonight’s evidence LCD are still at the top of their game. Murphy complains about his croaky voice, but he more than rises to the occasion. All My Friends is wheeled out early, You Wanted A Hit sounds enormous and Someone Great brings a tear to the eye to many around me. Alas, the 11pm curfew means that whatever grand finale Murphy was planning is cut short and the set ends unsatisfactorily (but perhaps appropriately) with Home. And then LCD Soundsystem are gone, perhaps forever, to whatever afterlife lies out there for sardonic dance outfits.