I have music files on my iPhone currently from my iTunes Library, I have recently got Apple Music and when I try and use the lyrics feature It doesn't work due to it not being added to the Library using Apple Music I'm guessing, I have around 106 songs and I don't know how I'm supposed to replace the files or if there is a way to fix it other wise, advance thanks for anyone helping!
iPhone 8
Hello,
The song will need replaced with the versions from the Apple Music catalog.
See time-synced lyrics in Apple Music on your iPhone, iPod touch, or Android device - Apple Support
"If the Lyrics button is grayed out
If nothing happens when you tap Lyrics 
, then either you’re playing a song that's not from the Apple Music catalog, or lyrics aren’t available for that song."
Add music to iPhone and listen offline - Apple Support
"Add music from Apple Music to your library
Do any of the following:
near the top of the screen to add the album or playlist, or tap 
, then tap Add to Library to add individual songs., then tap Add to Library.To delete music from the library, touch and hold the song, album, playlist, or music video, then tap Delete from Library.
Music you add to iPhone is also added to other devices if you’re signed in to the iTunes Store and App Store using the same Apple ID and have Sync Library turned on (go to Settings 
> Music, then turn on Sync Library)."
I hope this helps.
Hello,
The song will need replaced with the versions from the Apple Music catalog.
See time-synced lyrics in Apple Music on your iPhone, iPod touch, or Android device - Apple Support
"If the Lyrics button is grayed out
If nothing happens when you tap Lyrics , then either you’re playing a song that's not from the Apple Music catalog, or lyrics aren’t available for that song."
Add music to iPhone and listen offline - Apple Support
"Add music from Apple Music to your library
Do any of the following:
near the top of the screen to add the album or playlist, or tap , then tap Add to Library to add individual songs., then tap Add to Library.To delete music from the library, touch and hold the song, album, playlist, or music video, then tap Delete from Library.
Music you add to iPhone is also added to other devices if you’re signed in to the iTunes Store and App Store using the same Apple ID and have Sync Library turned on (go to Settings > Music, then turn on Sync Library)."
I hope this helps.
Transferring From iTunes Library to Apple Music Library
