35 Million Miles from Earth
Dance of the Turquoise Mouse
Rocket Cannon with Florent. Mike Kessell turned me onto these guys. Apparently Steve Albini recorded them.
Oh, and yes, it's a made-up language.
§Steve Howe does excerpts from Tales From Topographic Oceans.
There is a distant fantasy that the City Samanas do some sort of version of this. Tales is one of the most difficult Yes albums. I really don't know how it will work. But it's a very distant fantasy so I'm not worried about it yet.