This extension provides lyrics support for Google Music.
UPDATE: this extension doesn't work well anymore. Actually it still works, but most recent versions of Chrome will block the fetching of the lyrics because it is made via http while music.google.com is loaded through https. This means that chrome will show a warning triangle in the right part of the address bar saying that unsafe scripts have been blocked. Clicking there, you can activate the scripts and the extension will work again. Unfortunately I have no time to update the extension and find a workaround, so this will stay this way. Sorry.
This extension adds support for lyrics in Google Music.
It is very simple: when you play a song, it tries to fetch the corresponding lyrics, then if you want to see them you just have to click on the lyrics button next to the player controls.
It's still in beta stage, it needs the title and the artist to be spelled correctly and it relies on third party services to fetch the lyrics.
1.1.0: Now implements auto scrolling