Here is a terrific item I bookmarked months ago and just rediscovered. All five of conductor and pianist Daniel Barenboim's Reith Lectures from April of this year are available online in audio, video or transcript form from BBC Radio 4. The first Barenboim lecture is entitled In the Beginning was Sound. Recent (back to 1999) and historic (Bertrand Russell from 1948, John Kenneth Galbraith from 1966) Reith Lectures are also available on the site as audio files. Great stuff.
Can't remember which blog I saw this on. Let me know if it was you so you can get proper credit...
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