Balrog (London)

Yet another Light Show from London who I am trying to find more details on.

Do you know who ran this Light Show? If so please contact me via the link below.

Guessing the name Balrog was Tolkien inspired due the Lord of the Rings and Silmarillion character of the same name?

Also assuming the advert below was mis-communicated as the spelling is Bulrog ?!?!

If you can help with more information about this Light Show we would love to hear from you.

Jo-Ann Kelly and Key Largo, The Star, Croydon, August 1969 (Melody Maker)