behind the music: http://www.youtube.com/watch?v=hWkRGCDvVMQ&list=UUHSkkrcze4mkdaMsgQCTn-Q&index=3 making of bass: http://www.youtube.com/watch?v=niku7umNOUY&list=UUHSkkrcze4mkdaMsgQCTn-Q&index=2
