The article text provided consists only of the page's navigation menu and title, with no actual body content available to summarise. As such, no substantive details about the rival 1960s band said to have pushed Jethro Tull to be "more original" could be extracted from the supplied material.

Based on the headline alone, the piece appears to discuss how competition from another prog-rock act of the era influenced Jethro Tull's musical direction, but the specifics, including which band is named and the nature of the influence, are not present in the text provided.