Gatiss, J. Christopher. “Review of 1971/06/25 and 1971/06/26 Concerts at Arts Laboratory Newton, Birmingham. ‘The Super Spectacular Symmetry Show’ Presented by Birmingham Arts Laboratory Sound Workshop With Embarkation”. Contact: A Journal for Contemporary Music (1971-1990), no. 2 (June 1, 1971). Accessed April 28, 2024. https://journals.gold.ac.uk/index.php/contactjournal/article/view/contactjournal02_p35.