3 ms·

It is technically possible to acquire as an adult, but challenging: https://news.ycombinator.com/item?id=18227794 https://news.ycombinator.com/item?id=18227794,

• dwringer 3y ago
  I've always had great relative pitch but not "perfect pitch"; hearing a note out of the blue without any known context and being able to name it was always a struggle for me, but I did manage to do it first try on this quiz. Different timbres make it easier or harder in my experience. I'm also pretty sure the only reason I can do it now is because with age I got some hearing loss that's not evenly distributed across frequencies so now the difference between different notes is more pronounced.