Thanks Psychoadept:
I think what you are saying is that the two name formats would exist in two separate fields, and they are entered individually when setting up an entry. I have 360K tracks, and for those I believe I would have to enter the the first-last name in Artist, and re-key the Last-First name in the Sort Artist field. Am I right or offbase? If right, and with the manual effort daunting, I'd probably try to do some routine (unfortunately I don't code), to move existing Artists to Sort Artist and then parse/re-format the Artist field.