My 10 year old has perfect pitch, is definitely not on the spectrum, and is HG+. He's been taking piano for 5 years and it's been a great fit and activity for him.

It's funny the things he does now. If someone sings a song or he hears music he can tell what key it's in. And he can transpose it on the fly. He can sing a note on command and has not done any choir singing or voice training.