Music Trivia for Friday the 13th

Finding some music trivia to celebrate Friday the 13th is harder than you’d expect! But I did find this awesome tidbit:

You might be familiar with George Crumb’s Black Angels for electric string quartet. No? Well, here’s a quick sample of the first movement played by the always amazing Kronos Quartet:

Black Angels is subtitled “Thirteen Images from the Dark Land.” Crumb was influence by numerology, and Black Angels is no exception. It was completed on Friday the 13th of March, 1970.