JavaScript karaoke lyrics player

I saw a cool JavaScript karaoke player recently: DtTvB’s JavaScript karaoke player. It’s pretty cool.

It reminds me of a JavaScript karaoke player I made in 2005 (there’s a video of it and also a live demo with three songs), but it was more oriented towards the typical karaoke display (as on a TV screen). It doesn’t work quite as well with Flash 10 apparently, as it appears to jump ~30 seconds at the beginning.