This guitar instrumental is famous for its association with the Led Zeppelin song "Stairway To Heaven
." The beginning of the Led Zeppelin song contains many musical elements found in "Taurus," which was released three years earlier.
When Led Zeppelin toured the US for the first time in 1968, it was with Spirit and Vanilla Fudge. "Taurus" was part of Spirit's set, and Jimmy Page likely heard the song at some point - he admitted to owning the album.
"Taurus" was written by the group's guitarist, Randy California (birth name: Randy Wolfe), so he is the only member who could make a claim against Led Zeppelin, but he never did. California died in 1997 at age 45 when he drowned in Hawaii, but in 2009, Michael Skidmore, described by the New York Times
as a "customs consultant and former music journalist," came into control of California's trust and in 2014 filed a lawsuit against Led Zeppelin. The case went to trial, and in 2016 Jimmy Page took the stand, testifying that he never heard the song "Taurus."