What is "cascando"

Cascando is a radio play by Samuel Beckett. It was written in French in December 1961, subtitled Invention radiophonique pour musique et voix, with music by the Franco-Romanian composer Marcel Mihalovici. It was first broadcast on France Culture on 13 October 1963 with Roger Blin (L'Ouvreur) and Jean Martin (La Voix). The first English production was on 6 October 1964 on BBC Radio 3 with Denys Hawthorne (Opener) and Patrick Magee (Voice).

“The play was originally to be called Calando, a musical term meaning 'diminishing in tone' (equivalent to diminuendo or decrescendo), but Beckett changed it when ORTF officials pointed out that calendos was the slang word for camembert in French." The term ‘cascando’ (‘cascades’) involves the decrease of volume and the deceleration of tempo.''

Cascando is also the title of a 1936 poem by Beckett.