In 1969, Miles Davis was introduced to the music of Stockhausen by young arranger and cellist, and later Grammy award winner, Paul Buckmaster, leading to a period of new creative exploration for Davis. Biographer J.K.Chambers wrote that "The effect of Davis's study of Stockhausen could not be repressed for long. ... Davis's own 'space music,' shows Stockhausen's influence compositionally." His recordings and performances during this period were described as "space music" by fans, by music critic Leonard Feather, and by Buckmaster who stated: "a lot of mood changes – heavy, dark, intense – definitely space music."