For a few years now, I've been trying to achieve some sort of absolute pitch. I realise it'll most likely never happen, but several times a day, as I walk past a musical instrument, I'll sing a particular note - middle C as it happens, and it's got to >90% success. That note in my mind isn't the root of C, but the maj.3 of Ab, as it happens it's the start note of a tune in Ab.
This isn't absolute/perfect pitch, as I cannot hear a pinged glass and say what note it makes - or even hear a piano note and recognise it as a certain pitch. (Open strings on a properly tuned guitar are a different matter!).
Obviously, once the C is established, any other pitch can be found using relative pitch.
And it isn't relative pitch, which I use all the time.
Is there a term for it, and does anyone have a good ploy to improve the 'skill'?