I remember the old piano lessons where they gave you a note and you had to tell the examiner what it was. I wasn't bad at that, but then I can pick out the notes in a chord to help me construct it.
IMHO perfect pitch is great if you have it, but I don't think it is more important than having a good basic ear for music - if you can tell somebody is playing out of key or tune, then great. I think THAT's important. I once had a student who couldn't tune his guitar properly because he couldn't tell if it was flat or sharp. Practice? You have to be VERY didicated.
My point is that, IMHO, if you don't have YJM or
Eric Johnson perfect pitch, it's no biggie. Beethoven is proof.