And the US instrumental outfit � once described as a blend of Pink Floyd, King Crimson and The Grateful Dead � promise the record features "Mellotrons, Minimoogs, melodies and more."

Multi-instrumentalist Gayle Ellett says: "We wanted to create a melodic album with a classic sound. Most of us were born around 1960 so the 1970s was the decade of our youth.

"The music of that time and its values were pivotal in the development of our views on how music should sound � fusion, psychedelia, southern rock and other styles were popular. We're not trying to recreate that era, but we are inspired by it."