Tried google-ing it to no avail and e-mailed the beeb who can't be arsed.. see e-mail:

Dear Nigel Gurgingon

Thank you for your e-mail regarding the BBC programme 'Seven Ages of Rock'.

I understand that you would like details regarding the theme music to the programme.

As I am sure you can appreciate, BBC Information receives hundreds of thousands of requests each year for information about specific items in our programmes. We are able to provide answers to nearly all the enquiries we receive.

Occasionally, however, the information requested is not available on our very comprehensive database. As the BBC is committed to ensuring that we derive the best possible value for money for all our Licence Fee payers we can no longer justify searching some of the individual enquiries we were previously able to handle. We regret that your request falls into this category and are sorry that we are unable to supply the information you requested on this occasion. We hope that you will understand the reasons why.

I hope that you will continue to enjoy BBC productions and may I thank you, once again, for taking the time to contact us with your enquiry.

Regards

Jonny
BBC Information

Posted By: Nigel Gurgingon, Jun 12, 17:07:43