This is one of my interest fields (not that it controls my life or anything) but I like to philosophies about which of my musical heroes or musician I know of might have perfect pitch.

I don't say that only people with perfect pitch are the best at do what they are doing making music. or that people with PP is better instrumentalists, composers, arrangers or conductors then people with moderate pitch or tone death people. Like for example I don’t think Rick Wakeman have PP but he is an incredible gifted piano player, and can compose great stuff, probably knows what a good arrangement will apply, or might as well know have to conduct.

But what I mean is that many of the top musicians have made it without perfect pitch, I have read that when Robert Fripp started playing guitar he was almost tone deaf, but you will probably not guess that after hearing the song Starless or Epitaph, Innovativeness is probably hindered if you have PP, he might not handle dissonance and that will not work in a rock'n'roll setting.

people i Know of who have PP are Keith Jarret, Chich Corea, Franz Lizst, Mozart, Prince (probably), Mariah Carry (yeah you read right), Buddy Rich (from what I’ve heard of him in sessions he could be really tough to work with because he heard ALL wrong tones are false notes)

if You know of more please name them, I often believe that Elton John have very close to PP,

me myself don't know I am not tone-deaf but I have no formal musical training but play bass guitar and relay much on hearing/listening to tones and by that developing my tonality on bass, i like to learn more about Harmony, Rhythm concepts, melodies and bass

How Music Works by Howard Goodall part 1,2,3 and 4 which are about the core of what makes music part 1. melody, 2. rythem, 3. harmony and 4. bass highly recomended

Rick Wright claimed that Waters was practically tone deaf and he had to tune the bass for him because the tuning would drive him crazy. But this was post-breakup so he may have just been bitter.

I don't put that much stock in perfect pitch. It's nice, but I don't see it as really necessary to anything, even free improvisation.

Elton John could at age between 5 and 14 copy/paste any song he heard, that were playd to him, his ear was incredible at young age, thats why he got a Scholarship at Royal Academi of Music (youth section) at te age of 12 and was their til he wa 15/16 years old