You can access your entire music library with or without an Apple Music subscription and search for the music you want.
Unfortunately, Apple removed adding to queue feature with the release of iOS 10 and change it with the Play Last’ feature. (Late 2016)
We all love Apples Music app, but the "play later" feature is less useful than the "add to queue" feature.
By adding to the queue, the song is added to the end of the song queue that youve created, not to the end of the playlist or album that you are listening.
If you want to listen your music in the exact order that you want and have a better experience, welcome to Maestro.