While it’s somewhat interesting that instruments can sometimes be in different polarities on the same track and that sometimes tracks can be in different polarities on the same recording what is most important is whether the recording’s Absolute Polarity is Correct or Inverted. Especially if it’s the entire label that’s Inverted! Hel-loo!
There isn’t much you can do about the former cases, since those errors were made during the recording session. However, the latter case of *Absolute Polarity* of a CD being right or wrong relative to a playback system that has been determined to be in correct Absolute Polarity (using a test CD). Either a Polarity switch or the patience to change + and - cables would work. The alternative way would be to make the playback system’s *Absolute Polarity* Inverted. Then, presumably at least according to George Louis, most CDs will sound correct Polarity wise.
