I heard somewhere that David Tennant’s voice was sped up when playing Lord Commander so I got curious as to what he would sound like pitched down and well...

When All Things Considered launched in 1971, NPR brought a "new and different" sound to radio. This new sound featured the creative energy and electrosonic compositions of Donald Voegeli, a musician and composer at the University of Wisconsin. The university received funding from the Corporation for Public Broadcasting to compose music for both public television and radio. At the time, audio experimentation in electronic sound was on the rise, and Don took on this project with his synthesizer. Using a Putney, Don did some composing and the first iteration of the All Things Considered theme was born.

In this 1974 interview with Don, Susan Stamberg tells him, “You are really the man who has given us our sound.”