Apple Music and iTunes
Can you rollover your iTunes library to Apple Music?
Question marked as
Husker,
Yes, the music already in your iTunes library, or that you add in the future, can still be used with Apple Music. In fact it will become accessible across all your devices.
See the section on "What happens to music you already had..." in this writeup:
https://support.apple.com/en-us/HT205919