Seeing this made me curious to test my pitch accuracy after a few years of not playing music and I've discovered that my mind's A4 is now closer to 423 rather t

Seeing this made me curious to test my pitch accuracy after a few years of not playing music and I've discovered that my mind's A4 is now closer to 423 rather than 440 and it's driving me nuts. Feels like the Berenstein/stain Bears thing all over again