If in Dowd

Why does every radio station play the same music?   Given my occupation, I'm regularly asked naive questions about radio from lay people:  Has anyone ever overheard you in conversation and interjected 'I recognise your voice'?  and Can you get me free tickets to X gig/festival?  are classics. The respective answers are 'No... don't be ridiculous'; and 'No... don't be ridiculous'. There is one question however which comes up regularly enough and I think it's important that it is being asked. Why does every station seem to play music from the likes of Ed Sheeran, Coldplay, Adele and Pink? Have they found the golden formula for pop music? Perhaps they have, but here's the thing. Most music radio stations in Ireland have what's known as an Adult Contemporary format . This was imported from America in the 1980s when aggressive heavy metal and crude rap were emerging as genres, but the soccer moms and 9-5 office workers wanted a more pre