It’s not that one but Glass and Cage were both very influenced by it. This is going to really bug me now. The piece is not very well known but it’s by a very well-known composer either Ravel or Satie I’m almost sure.
It’s fewer repititions than I had remembered at a mere 840.
When John Cage, David Tudor and others gave the first public performance, it took over 18 hours and they gave a refund to audience members of 5c for each twenty minutes they stayed for