Peter Tod Lewis, Director of the University of Iowa Electronic Music Studios from 1968-1980, created an audio introduction to the Moog synthesizer in 1979. 

The multi-part series provides a perspective from the past on the synthesizer and its role in classical electronic music studio. 

Here are links to each of the segments in the series:

• Intro to the Studios.mp3
• Intro to the Moog.mp3
• Oscillator Waveshapes.mp3
• Oscillator Pitch Control.mp3
• White Noise.mp3
• Keyboard Control.mp3
• Subaudio Oscillator Control.mp3
• Combination Tones.mp3
• Filters.mp3
• Filtered Noise.mp3
• Filtered Music.mp3
• Filter Control.mp3
• Amplitude Control.mp3
• Amplitude Envelopes.mp3
• Timbre Envelopes.mp3
• Amp/Timbre Envelopes.mp3
• Envelope Follower.mp3
• Sequencer.mp3
• Conclusion.mp3