Eno's recording of Music for Airports (not "elevators", that is something of a howler) had an interesting compositional method which was based on overlapping ta

Eno's recording of Music for Airports (not "elevators", that is something of a howler) had an interesting compositional method which was based on overlapping tape loops, with the loops having different periods. You can hear the notes coming into and out of phase (over very long time periods) sometimes playing almost over the top of one another, and sometimes with silent spaces. Because of this, it has a sub rosa mathematical side. Eno was influenced by Glass, but Glass is about a decade older. I'm sure I've listened to that one record 200 times. I've found all of his music to be very rewarding over many years. Incidentally, the article mentions John Adams in passing. I've found Adams' music to be more engaging and adventurous than Glass'. Adams is more of a West coast character, he's the composer in residence at the LA Phil and, earlier, at the SF Symphony. Highly recommended.