 Buffy 's numbers are the most complex , changing key and tempo when she begins to reveal the secrets she swore she never would . This appears specifically in " Something to Sing About " , which starts with uptempo platitudes : " We 'll sing a happy song / And you can sing along : / Where there 's life , there 's hope / Every day 's a gift / Wishes can come true / Whistle while you work ... " While singing , she kills Sweet 's minions with a pool cue . Whedon attempted to make the song tuneful yet chaotic to express the main point of the episode . It transitions suddenly into her desire to be like normal girls , then changes again , slowing the tempo as she challenges Sweet not to give her a song , but " something to sing about " . Musicologist Amy Bauer categorizes the tempo shifts as " rock ballad to punk polka to hymn " that indicates Buffy 's turmoil . The key and tempo slow again , as Buffy finally reveals " I live in hell / ' Cause I 've been expelled from heaven / I think I was in heaven " with the chord changing from B minor to B diminished , each time she repeats " heaven " . When replying to her , Spike has the same shift from minor to diminished each time he repeats the word " living . " 
