May 09, 2017
Related to an obscure period in TEB's story, I've found on line this references to their appearance at the second edition of Windsor Free Festival, played from August 25th to 28th, 1973 in West London at Windsor Great Park. Probably one of the last of their first artistic phase.
Here's some stuff for the promotion of the festival:
One could ask how a group as TEB could be on the same bill with Hawkwind (the stars of that edition), Pink Faires, Skin Alley, Camel... but we know at that time, after the attempt to record "The Dragon Wakes" and the recordings of "Macbeth", the band was trying to develop a new form of "electric raga rock".
A photo by Dave Walking with the Hawkwind on stage: (L-R) Michael Moorcock, Robert Calvert, Simon King and Lemmy.
The very good portal of UK festivals at the page about the Windsor Free festival editions (http://www.ukrockfestivals.com/windsor-menu.html) shows memories and pictures about the event, even if nothing about the TEB.