Elastic Rock

Elastic Rock was recorded at Trident Studios in London in January 1970, produced by Peter King, and released on Vertigo in March, then remastered in 2007. Karl Jenkins wrote most of it; "Striation" is by Clyne and Spedding, "Taranaki" by Smith, "Twisted Track" by Spedding, "Crude Blues Part II" and "Persephones Jive" by Carr, and "Earth Mother" by Jenkins, Carr, Marshall, Clyne and Spedding. It reached number 46 in the UK.

AllMusic and the Encyclopedia of Popular Music each gave it four stars and the Penguin Guide to Jazz three. Wikipedia calls it a pioneering work in the emerging genre of jazz fusion. Spectrum Culture's Will Pinfold wrote in 2023 that it sounds mostly like typical late-1960s jazz-funk, giving it 74 percent; he calls "Torrid Zone" louche, limpid laidback porn-funk, praises John Marshall's tight-loose drumming and says Jeff Clyne's bass is the star.