Not Exactly Soundgarden.

“The more black holes eat, the more they spill, and it is widely thought that their feeding frenzies power the violence seen in the nuclei of many galaxies, including the powerful quasars that are so bright they outshine their parent galaxies.” The NY Times delves into the strange sounds emanating from black holes. “The frequency of these waves was equivalent to a B flat, 57 octaves below middle C, the astronomers calculated.