Consider Symphony #60 ("Il distratto"):
Added: aha, now I see HaydnBearsTheClock mentioned it already...
(Wikipedia)
Added: aha, now I see HaydnBearsTheClock mentioned it already...
(Wikipedia)The finale features one of Haydn's famous musical jokes: the energetic prestissimo opening grinds to a sudden halt following a spectacularly discordant orchestral flourish, as the violins discover that they seemingly "need" to retune their strings - which they noisily proceed to do for 10 to 15 seconds before they resume playing.