My piano, to my knowledge, is just being tuned to the standard equal temperment scheme like any modern piano...
I honestly don't think I have perfect pitch...just "better" pitch than I did before. That is, if I hear a pitch, I can now remember it minutes later...and if I hear it enough times, like the one bad note on my piano, I can probably remember it permanently. So...eventually it would appear I will be able to sing any of the 12 tones on command... I don't care to be able to do this honestly, it just appears to be happening given how I have trained myself thus far and how I am now choosing to train myself in sight reading...