Collections Kazunori Sugiyama(b. 1950) Producer, recordist. Active in New York City 1977 through 2020. Gary Hassay(b. 1947) Driving force behind Improvco, which produced nearly 135 concerts in the Lehigh Valley between 1980 and 1994. Evelyn Blakey(1935–2007) Vocalist. Active in New York City. Will Gamble(1932-2013) Photographer and documentarian of Jazz and creative sound. Active in California 1959–62, and in the New York City area through the end of his life.