I was lucky enough to be present at the Effie House (Los Angeles, CA) when Rocco DeLuca and Simon Katz recorded a song called "Windows" for Rocco's album "Drugs 'N Hymns".
Rocco put down 3 tracks: guitar and vocals, slide guitar, and ghost vocals. I split the screen into four parts so you can see and hear each part of the song (put on good headphones if you don't have good sound). Rocco is singing about Barton Springs in Austin, TX so I filmed a bunch of stuff (with my iPhone and an app called Camer8) in an around there for the fourth window.
Key: Guitar and vocals (upper left), ghost vocals + behind the scenes (upper right), slide guitar (lower right), Austin visuals (lower left).
Album available thru 429 Records