Just attended a singing weekend in Yorkshire with never an instrument in sight - although there were some exceptional musicians there. Two hundred plus songs sung over two and a half days with only a couple of variants (duplicates?). Mostly traditional English, Irish and Scottish with some excellent more moden stuff in the idiom.

Also just listened to the couple of tracks by Ed Sheeran and they would certainly have been welcome at the gathering - He probably applied too late as the event usually sells out within 24 hours. (Tongue in cheek!!)

And no I am not being condescending. He is obviously a young man with a bucket load of talent and a real feel for quality music of whatever genre.