Many universities have performance choirs, but the one at Morley College, an adult- education school in London, has an unusual caveat: It’s a chorus for people who can’t sing.
For the past 15 years, the school has run both choirs and special classes for people who want to learn to sing better (or at all).
Less than 2 percent of the students the choir’s director, Andrea Brown, encounters are actually tone-deaf, she told the BBC. The rest simply have “their own unique voice.”

Errors Made While Singing Music Perception