You can (probably) sing better than you think

The ability to identify or produce any musical note from memory without reference, aka true perfect pitch, is a rare gift. In fact, less than one in 10,000 people have it--but you don't need the ability to spontaneously recall a melody with decent accuracy. If anything, you may not be as tone deaf as you think. Past research in lab settings shows people tasked with remembering and singing a well-known song can do so at least 15-percent of the time, more than can be chalked up to chance. Even so, psychologists' understanding of this recall process remains incomplete.