The lyrics box is just one small textbox. Ideally it should be its own tab with a text view covering all of it. OTOH, the info box sizing and the UX is something that needs a total overhaul. "Bad" doesn't even cut it.
FWIW this is only for text entry. For *viewing* lyrics, you probably want to use the "Now Playing" page which has a much larger view for lyrics.
Yes, but it is inconvenient when correcting the text.
Indeed.
Probably needs a bare-bones ktexteditor. :)