I attended the Stanford Linear Accelerator computer meetup in 1976. A guy had programmed a surplus PDP-1 to play music by entering the code through the dip swit

I attended the Stanford Linear Accelerator computer meetup in 1976. A guy had programmed a surplus PDP-1 to play music by entering the code through the dip switches on the front panel. It created various pitch notesby timing loops. PS This meetup was also called the Silicon Valley Homebrew Computer Club.