”This lecture was printed In Incontri Musicali, August 1959. There are four
measures in each line and twelve lines in each unit of the rhythmic structure.
There are forty-eight such units, each having forty-eight measures. The
whole is divided into five large parts, in the proportion 7, 6, 14, 14, 7.
The forty-eight measures of each unit are likewise so divided. The text is
printed in four columns to facilitate a rhythmic reading. Each line is to be
read across the page from left to right, not down the columns in sequence.
This should not be done in an artificial manner (which might result from an
attempt to be too strictly faithful to the position of the words on the page), but
with the rubato which one use. in everyday speech…”