Silmarillion, JRR Tolkien (via lovebookquotes)
The most common response I see to this passage is that Fungin was either bold or careless as f*ck for doing this because Orcs would hear the music.
But what about the Elves? The slaves that Melkor was keeping prisoner in the mines? What would the captured Noldor do if they heard the old sings from their homeland amidst the noise and the stink and darkness of Angband? How would the Umanyar react to hearing these new and beautiful songs or seeing the wistful faces of their Amanyar fellow prisoners? After the rescue is long over, do they still listen for a snatch of a tune in the darkness?