It would be very convenient for me if lyrics were auto searched (and optionally embedded) whenever the floating lyrics window is open and the track has no lyrics (and is not marked as having no lyrics).
I don't use the option "auto retrieve missing lyrics for the playing track" because many songs I listen to have no vocals, so this would cause a lot of unnecessary network requests. Automatically retrieving lyrics on window open makes a lot of sense however because it's clear that I want to see the lyrics whenever I open it.
Of course, whenever the track changes while the lyrics window is open, it should also search for the new track lyrics.
If possible, it would be great if this behavior could be enabled whenever any lyrics-showing UI control is visible (such as the lyrics panel, or the now playing bar with "Show Lyrics" enabled), not just for the floating window, but that might be harder to implement.
By the way, this is minor, but I also think the escape key should close the lyrics window.