Huge +1 to this post. Lots of other posts are off-base about the basic definition. I've always had strong relative pitch ability and many people mistake my abi

Huge +1 to this post. Lots of other posts are off-base about the basic definition. I've always had strong relative pitch ability and many people mistake my ability for perfect pitch. But in most practical applications, it's not just the _answer_ you arrive at that makes the definition so (because this can be faked), it's _how_ you know it. People with absolute pitch just _know_ it without thinking -- no tricks, no mental reference note, no memorizing songs, no relying on a certain instrument's timbre, etc., they just know it.