The Pride of Petravore or Eileen Oge (Young Eileen) is the name of a song written by Percy French (1854-1920). It is based on a classical hornpipe melody and was recommended to me when I heard Sinéad O'Connor's Foggy Dew.
So there are 8 musicians sitting on stage and they start to lay down a carpet of sound that sounds nice and weird and then a cheerful flute melody is laid over the whole thing. The whole thing comes across really well on the soundboard and the trombone at the end sounds particularly excellent.
The song is about the most beautiful girl in town. No one dared to court her. Only the cattle dealer managed to win her over with a marked lack of interest and ended up being the groom of the most beautiful woman in town. She was the pride of Petravore until the cattle dealer stole her (which reminds me of another song by Faber).