“Language is music, and the music is concrete.”
Jonas Olesen has written a fine article about Lily Greenham on Seismograf: seismograf.org/artikel/sproget-er-musik-og-musikken-er-konkret
It’s all in Danish, but it includes a link to a lengthy interview (in English) with Charles Amirkhanian: archive.org/details/pacifica_radio_archives-AZ0017