Hello,
Yes, the term "iCloud Music Library" refers to Apple cloud service for music users of both iTunes Match and Apple Music. This must be enabled in Settings>Music to access your iTunes Match music. If you don't see your music, the "Music Available Offline" option may be turned on thereby only showing music locally stored on your device. This option was formerly located in Setting and referred to as "Show All Music". It is now located within the Music App & is accessed by the drop down menu where you choose views for Artist, Album, etc. If your not using Apple Music, most of the changes are terminology related. However, music tracks no longer show the cloud icon indicating they are not locally downloaded. Rather, it's the inverse by showing a bookmark to indicate the track is "not" in the cloud and is stored on your device. Hope this helps out.