This is not a Norton. This is Billy Apple's trombone...
Via: net new music
"In December 2007 conceptual Artist Billy Apple staged a sound performance at the Auckland Art Gallery yesterday afternoon, filling the usually tranquil Albert Park area with roars and smoke from the "The Billy Apple Historic Racing Collection" - a series of classic British grand prix bikes like the 1962 Norton Manx 500cc, once raced by innovative cycle designer John Britten. Reconfiguring the traditional gallery circuit of Kitchener and Lorne streets as a conceptual track, Apple had notable riders deliver their 20 minute sonic barrage in the 'pit'.
Apple has a long engagement with sound in previous works, such as Severe Tropical Storm at Window, in which an extended 'soundtrack' was composed from data sourced from a fateful voyage on a freight liner. The usual generic throttle sounds were replaced with a range of throaty roars, pops, and piercing buzzes - demonstrating different attributes of each bike, and reinforcing the artist's statement that "the difference between the AJS and Norton is like the difference between a trumpet and a trombone."