We'll create fresh WordPress site with WP Lyrics installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Simple plugin to hide the lyrics of the songs you publish (they will be between [lyrics] and [/lyrics]). You can also use it for spoilers or any text you want to make viwable with a click.
It is SEO friendly and gracefully degrades in environments without javascript because firstly all the text is shown, and only when the page is fully loaded the text enclosed by the [wplyrics] text will be hidden, adding a link to make it visible.