“We’ve heard the bar will be closed during this performance, so this might be a long 45 minutes. But we’ll suffer through it together.” Gyan Riley is sat across from his 85-year-old father, Terry, on-stage at Dublin’s The Sugar Club. Before them, watching on from tiered cinema seating and plush velvet banquettes, is a small sea of muted smiles that strong suggest that sufferance – or anything resembling it – is far from on the cards this evening. Hosted by the city’s perennial gatekeepers of good taste, Choice Cuts, it’s the first of a two-night residency from The Rileys and the…