The book includes mesostics on the names of various people .
X : Writings ' 79 -- ' 82 is a book by American avant - garde composer John Cage ( 1912 -- 1992 ) , first published in 1983 .
The book includes mesostics on the names of various people .
X : Writings ' 79 -- ' 82 is a book by American avant - garde composer John Cage ( 1912 -- 1992 ) , first published in 1983 .