We are playing a long gig this coming friday and the band leader has included YMCA :-( I'm used to playing straight walking bass and suddenly I have to play 'disco' octaves. We also play the number a bit faster than the song as an instrumental (if I was uncharitable I would say we play it fast to get it over and done with). I have tried using thumb for the root and 2 fingers for the octave but it sounds all rather loose and undamped. I haven't tried a pick because I don't normally use one, although I suppose I could use a bit of right-hand damping then. So, does anyone have any advice on right-hand technique for playing octaves, please?