A. Wayne Slawson's computer-generated Wishful Thinking about Winter (Decca DL 710180) uses speechlike sounds featuring a large range of spectral glide rates.
Frölicher spectral sequence | Glide | Electro Glide in Blue | Spectral purity | Spectral line | spectral line | Spectral efficiency | Spectral density estimation | Spectral band replication | Glide with Me | Glide, Oregon |