Karlheinz Stockhausen -- Mikrophonie I / Mikrophonie II

Lately, I  have been listening to a lot of classical/electronic/musique concrete music from the 1950s & 1960s.  It puts me in a good headspace, with respect how the world is behaving these days.  Stockhausen is a composer that I know very little of his music, but his name of course.  For the next year or so, I plan to go into the rabbit hole that is Stockhausen's world.