My biggest iTune music problem is with the mp4p files. First I was informed to sign-up for iTunes Plus and then you can convert those mp4p files for mp4a's... not so. I found app that converts mp4p files to mp3 files but I found you have to turn off iTune match because iCloud exchange them back. Now I find the exchange eventually happens any way, it just takes iCloud a little longer. On my Sonos system it will play mp4a files but when iCloud switches the files back you have to start the whole time consuming task all over.
I have collected thousands of iTune pieces of music over the years and it's a shame I can't listen to the music over quality speakers powered by a quality amp.
BTW, you can't repurchase the music because iTunes Store says it's already purchased making it impossible to buy and download.
Any help?
Thanks.