凯奇，小约翰·米尔顿生于1912创作前卫派作品的美国作曲家，如奏鸣曲和间奏曲为琴弦被木料和金属损坏了的钢琴（1946年到1948年）而作

• American composer of avant-garde works, such as Sonatas and Interludes for a piano with its strings damped by wood and metal(1946-1948).