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What exactly do you mean by "transfer manually"? Did you drag and drop the songs to the phone in ITunes rather than syncing?

No.

If you want to reduce the bitrate on the phone, you can simply use the "Convert higher bitrate songs to ..." option in iTunes and sync normally. iTunes will then reduce the bitrate on the fly.

I have that option checked. I have been using this for years, even before iTunes Match came along.

I often sync via iTunes before enabling Match and it has never deleted any songs on the phone (since iOS 6.1).

Well, apparently, it works for *some* people, and not for others.
There are plenty of people that report that their entire music gets deleted the moment they turn on iTunes Match.
I have tried it at least three times, and it never retained all music. In one occasion, it retained about 2% of my music. WTF ?

Judging by the warning that you get when you try to turn on iTunes Match, deleting the entire previously synced library is by design, not a mistake. I don't understand why Apple sometimes is so *&%$%# dense about things.

-t
 
Well, apparently, it works for *some* people, and not for others.
The only thing I can think of is that it perhaps cannot match the cloud versions to the local files if you have changed the files by reducing the bitrate. Perhaps you could try what happens if you sync some songs with their original bitrate to the phone and then enable Match.
Judging by the warning that you get when you try to turn on iTunes Match, deleting the entire previously synced library is by design, not a mistake.
I don't think so. Replacing the library is not the same thing as deleting all files. I think the way it's designed to work is that Match mirrors the library you have in the cloud on the device. It it recognizes a file already on the phone as part of the cloud library when you enable it, it will keep it. If it doesn't, it will delete it, since it is not considered part of the cloud library.
 
The only thing I can think of is that it perhaps cannot match the cloud versions to the local files if you have changed the files by reducing the bitrate. Perhaps you could try what happens if you sync some songs with their original bitrate to the phone and then enable Match.

If that was the case, would you call that a bug, or just intolerable bad design?

-t
 
My entire music library got deleted when I signed up and enabled iTunes radio. It took forever to even some of my music because it kept stopping. Then when I went into the Music app it kept crashing. Finally it stayed open just to load iTunes Match but still zero music. I then called Apple up and cancelled this crap but now I have problems with my Apple ID always prompting me for passwords. Was on the the phone for over a hour with Apple.

All this for ad free iTunes Radio I will just stick with Slacker Radio Plus.
 
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