I watched a video of 1963 Fender Bass VI(sea foam green) recently, played by Phil X, one bass riff he played caught me. This riff sings in my head all this week.But I really want to know what's the song this riff comes from.He played it repeatedly for different pickups. You should be able to find this video on youbutesad:I can't access youtube here in China). Or you may watch the video here, http://v.youku.com/v_show/id_XMjAxNDU4ODA0.html, start at about 3:02. This riff may not be hard to play, but it is nice. Any clues? I'd appreciate your help.