Interface Message Processor #36: "it's maybe permanent"

36 editions of the IMP? Guess it's a thing. Arlo might say "friends, they may think it's a movement". Or at least a good hour and a bit full of funky melodic house type music with lots of beats and other good things in. Happy anniversary!

What's an IMP really? http://en.wikipedia.org/wiki/Interface_Message_Processor