Quoting this Apple thread is pointless - the user obviously has no clue as to what they are doing! You cannot sync music plus use iTunes Match. I'm guessing they are confusing Match with "iTunes in the cloud". As I said before- figure it out yourselves as you are obviously having so much fun.
I have 19,540 songs in iTunes Match and I can play, play away on iPad or iPhone and it never uses much space - only for caching played songs. Plus these are not stored in "other", but under "music". Have fun figuring it out.
what i am talking about is a bug in tunes match.
pleae stop insuting me and bossing me around and accusing me posting wrong info
i want to repeat myself. if you have an iPhone and you have 5 or 50 gigs of "other" it is because you turned on iTunes match.
please read my message word for word and slowly.
if someone wants to know what his other is, ask them "do you have iTunes match" if they say NO, then proceed to tell him your canned answer of restoring your phone and checking messages. or whatever you say
if they do have iTunes match and its a large amount of other it is their old music library
what happens is someone syncs music to their iPhone.
they are happy with carrying around sync'ed music
at some time later they decide to turn on iTunes match
iTunes match gives them a warning that if you enable iTunes match, the sync'ed music on the iPhone will be deleted.
turns out in iOS 7 and iOS 8, sometimes iTunes match does not delete your library and it just sits in other wasting space
since iTunes match is now on, not even iTunes itself can remove that music, as far as the iPhone and iTunes is considered, that music does not exist. it does not show up anywhere but in the "other" situation it is still there.
so if you have say 50 gigs of "other" , or you are wondering why your iPhone is taking up so much space, to other, it is simpler to just turn off iTunes match, any music library will go come back, then you delete it manually, and then you turn iTunes match back on
I've personally had this issue and it personally has happened to at least 4 people i know of.
it is bug that sometimes shows up and i was able to get it to happen in iOS 8.1.2
i am tryng to help others here. please do not personally insult me or order me to stop posting wrong of off topic posts.
i get offended when people reply to me thinking i am lying on forums.
this iTunes match bug personally happened to me.
when you turn on iTunes match and it says it will delete your existing sync'ed music on your phone, don't believe it for a second, and you should delete your sync'ed music manually.
if someone on mac rumors wants to ask what other is, tell them the stock answer, but you really should explain to them that sometimes "other" can be an old music library of sync'ed music .
if you turn on tunes match on a iPhone that has never had music sync'ed to it, then you do not have this problem and you will never have this problem , because the iPhone blocks you from syncing music
if you turn on iTunes match on a phone that holds synced' music, oh man watch out this means you