At last Apple Music is ditching the DRM & metadata library matching in favour of the iTunes Match acoustic fingerprinting.
What does this mean for you?
Having both services use the same matching method should improving matching and hopefully making your iTunes library less cloudy. More specifically:
You don’t use iCloud Music Library: Nothing to see here, move along. You keep playing your music as before.
You subscribe to iTunes Match subscription, and not to Apple Music: Nothing changes. Your life goes on as normal, and you continue paying $25 a year to have your music (up to 100,000 tracks) in the cloud.
You have both iTunes Match and Apple Music subscriptions: You can turn off auto-renew for iTunes Match. You won’t need iTunes Match any more, since Apple Music will now match using acoustic fingerprinting, and your files won’t have DRM if you download them on another device. Go into your account in the iTunes Store (Account > View My Account), then go to iTunes in the Cloud > iTune Match, and click Turn Off Automatic Renewal.
You subscribe only to Apple Music: You won’t notice much of a change. The only difference will be that new matched tracks will have an iCloud Status of Matched, rather than Apple Music, and they won’t have DRM. You can force older downloaded tracks to change their status by deleting the local copies and re-downloading them; iTunes won’t automatically do this for you. And you can play these matched tracks on any device, even one that doesn’t have an Apple Music subscription or isn’t signed into Apple Music. Note that tracks you add from Apple Music to your library still have DRM; this change only affects tracks that are matched from music you own.
Also, if you are an Apple Music subscriber, then you won’t be able to subscribe to iTunes Match any more; which makes sense, since you won’t need it.