Q: My girlfriend has purchased a lot of music from the iTunes Store. using two different Apple IDs. She has quite a few protected, pre-iTunes Plus tracks which are incompatible with her Sonos music player - of course these are related to the older Apple ID that she no longer uses. If I use the procedure you described to use iTunes Match to upgrade protected/low-bitrate iTunes Store tracks, will it only apply to the tracks bought under the Appleā¦