I think it will be great if in lyrics mode there will be (maybe) an button to (temporary) disable lockscreen when active showing lyrics while playing music.
The screen don’t shut down while playing music with activated lyrics screen.
It is possible to read the lyrics while playing an audio file or use it for karaoke.
While playing an audio file with (synced) lyrics you can play them by activating the lyric monitor. Unfortunately the lockscreen shut down the screen after a few minutes even when playing and showing active lyrics.