Before Apple started adding lyrics to Apple Music, I'd used one of the third party services to add lyrics to the songs in my iTunes library. Apple's own lyrics service is far better (i.e. it's more accurate and matches the lyrical progression to the song), but the trouble is they don't get included where custom lyrics are already embedded in the track.
So, 2 questions: (a) is it possible to blanket-remove all custom lyrics from my songs, and (b) once these are removed, will they automatically get replaced with the 'official' lyrics where they exist?
So, 2 questions: (a) is it possible to blanket-remove all custom lyrics from my songs, and (b) once these are removed, will they automatically get replaced with the 'official' lyrics where they exist?