Singalong or keep stumm … what's the etiquette for musicals?
As karaoke versions of musicals take off, we chat to punters at two West End shows " strictly during the interval, of course " to gauge opinion on audience participation 'It'll have them singing and dancing in the aisles!" That may be the kind of blurb you'd splash all over a poster for a musical, but it's not actually what every theatre wants to happen. Back in October, a family left a production of Motown the Music…