Thanks for pointing that out. I currently have about 2,500 songs on my iTunes (and iPhone) but the originals are all stored on my PC, not in the cloud. I might just dump them onto an iPod in case there's something rare I want to keep, then sign up for Apple Music.Be careful with Apple Music. Eg: I had a very extensive library of music (in iTunes) which I ripped from CD's which I own - this was done over years and even had some LP's which I had digitized (which weren't available on CD or in iTunes). With Apple Music (a good deal if you have a family and a lot of Apple devices) there is an option to keep your music in the cloud. IF you choose this - what happens is that Apple will arbitrarily replace songs in YOUR library with an equivalent version in the Apple Music Library. For me, this meant that many artist's music has been replaced by what Apple Music thinks is an equivalent. So some studio track may be replaced by eg: a live version of the same song. OR a rare track will be replaced by a newer track - sometimes by a different artist. And in some cases the track has been replaced by something that is completely wrong. Worse - all of the Apple Music has DRM. So if you have an older device - you will no longer be able to copy the Apple Music version of the track. So for example: I have an old iPod classic in my car which I just keep in the glovebox where the cable is located. But NOW, some of my playlists are incomplete because the older iPods can't download DRM protected music.
The worst part is that you cannot recover your tracks (except from a physical backup you may have made). So I have lost some rare tracks from CD's or Albums that I no longer can access. This is a known problem and if you google, you'll see many with the same issue. I'm surprised that Apple hasn't faced a class action suit over this - since they basically take over your entire music library. (note: I believe this only happens if you choose to keep a copy of all your music in the clouse - so be very careful before you choose this option as there is no warning about what happens).