For displaying lyrics, take a look at LivePrompter - you can link it with Cantabile, so that whatever song you select in Cantabile, the correct lyrics display in LivePrompter. And LivePrompter also allows you to have the lyrics scroll in time with the song; and if you want to display chords with the lyrics, that can be done, too. Just give it a try - it’s free!
Cheers,
Torsten