I also think synced lyrics support would be a really nice addition as this is one of the main things I miss from Foobar2000, although it was an addon (https://github.com/jacquesh/foo_openlyrics) and not native to it. If I could add another suggestion, it would be nice to have the unsynced lyrics scroll throughout the song, it won't be correct or precise in 100% of the cases but it's quite surprising how well it matches most songs.