Seinfeld premiered in 1989 and ran until 1998, with composer Jonathan Wolff creating its distinctive bass driven theme and short transition cues. Each riff was tailored to the episode, giving the show a musical signature instead of a traditional orchestral score. The clips later spread through reruns, YouTube edits and soundboards, alongside other television transition sounds like the Law and Order DUN DUN. Today the riff is instantly recognised even by viewers who never watched the series, and creators use it as shorthand for a smug, observational comedy cut.