Mixing in Key

[stjohn]

i have a question about this:

As far as i know records are produced on different tempos, and some of them are 'tonal' enough to say they are written in a certain key. But as soon as the music is pressed on vinyl, tempo and key are connected.
So how do you mix an 136 bpm record with a 137 bpm record of the same key?

well this 3 % on the pitch fader for a semitone thing is supposed to cover that....

the Equal temparate scale is divided into 12 equal frequencies/pitches, so 3 % would apply to 3 x 12 = 96, which is close enough to 100%

if you stuck to this rule while mixing, im sure it could wokr.....but as i said earlier.... rules rules..