Quoted from YeOldPinPlayer:What is the tolerance specification for turntable RPM? I doubt the frequency would be outside of that tolerance or be noticeable to the ear but it would be interesting to find out.
Quoted from dr_nybble:An error of 7.5 minutes from March to November is about 0.002%.
Yea, not sure I could detect that kind of difference, and you can calibrate any good turntable anyway.
Hell, I could never afford new batteries in my Walkman, so I grew up with 'slow' music.