The Tone Generation is a radio series by Ian Helliwell 'looking at different themes or composers in the era of analogue tape and early synthesizer technology'. The original globe-trotting series: Great Britain, France, Germany, Italy, Holland, Scandinavia, Eastern Europe, USA, Canada, Rest of World. Bonus programmes: Expo 58, The RCA Synthesizer. All links are to MP3 files, except the first one. Alternatively, you can slurp down the lot in one go by subscribing to the podcast feed.