Okay, I've been a fan of the band Rush since the late '70s. One of my favorite pieces of theirs is the instrumental YYZ from Moving Pictures. I've always thought it cool it was named after the code for Toronto's international airport, but I only just learned that the reason it starts out in the unusual time signature of 10/8 is because the starting beat is "Y Y Z" in Morse code. Am I the last Rush fan to realize that?
(I think I need a good music icon.)