Signed copy of the quarterly arts magazine "High Performance" from the influential composer, who is shown in a color photograph on the cover and has signed over his image in silver marker. High Performance #38, Vol. 10, No. 2, 1987. The magazine features an interview with Cage to celebrate his 75th birthday, as well as essays on dance and theater, and listings of cultural events. 88 pp. A few small flecks to the cover, but overall very fine. 8.5 x 11 inches (21.5 x 28 cm).