sentence: band members peter green -- guitar , vocals danny kirwan -- guitar john mcvie -- bass mick fleetwood -- drums , cymbals the other member of the band , guitar jeremy spencer , is thought not to have been present at the recording sessions , though he was present when green was recording the eerie howling noises heard at the end of the song , according to an interview with spencer on the bbc peter green documentary dvd , '' man of the world '' .