Matthew M. Conroy reviewed In search of a concrete music by Pierre Schaeffer (California studies in 20th-century music -- 15)
Review of 'In search of a concrete music' on 'Goodreads'
3 stars
It was great to read Mr. Schaeffer's thoughts, but I was hoping it would be more useful for me (I thought there would be more ideas shared I could try out myself).
I'm always impressed by the effort so many put in in this field prior to practical digital technology.