Where did tracking error go?


Back in the dark ages, when men were men and I still owned vinyl......
There were many tonearm designs, not to mention linear tracking designs that were meant to keep the stylus perfectly in the track as the tonearm moved in an arc across the record.
My local dealer carries a few fancy schmancy turntables - but none of the tonearms address this. He couldn't answer the tracking error question - in fact he looked like he hadn't heard of it before.
How did we make this go away? What's next - gravity?
24phun
BTW, meant to correct this days ago and forgot, but the variable tracking angle error -- as compared with the constant cutting angle -- that's intrinsic to pivoted arms and absent from linear ones isn't the "azimuth", as was implied above (it's simply the tracking angle error). As I'm sure everyone really knows but may have temporarily spaced on, azimuth is the vertical perpendicularity of the stylus in relation to the plane of the record surface in line with the cantilever, and is adjusted by rotating the headshell or tonearm about its longitudinal axis, something that's not different for the two types of arms. Couldn't let that one stand for posterity you know...
Zaike...Well, I didn't know that terminology. It is a bit strange because "Azimuth" in any context except audiophillia, means an angle that lies in the horizontal plane. IMHO, the proper terminology would be "Azimuth" "Elevation" and "Roll", but then this is just an engineer talking.

Question...I just looked over a brochure that came in the mail from Audio Advisor and it states that "A high-quality turntable system removes 90 percent of the record surface noise...". That might be a reasonable claim for a record cleaning machine but I am quite at a loss to see how, physically, a turntable could do that. Ideas anyone?