i spend to much time on Russian forums
I think you do just fine, my Dear. :-) And yes, I too would very much like to know whether Polovetsian or Polovtsian is correct, if you could take the trouble to tell us. If memory serves, my youth orchestra conductor told us that, although the music was printed with the e, the "true" spelling didn't have it. My suspicion is that the differences in English spelling might be due to the fact that the two languages have different alphabets.