Invention for Radio No. 1: The Dreams

The Dreams (1964) is the first of Delia's four Inventions for Radio produced in collaboration with the poet and dramatist Barry Bermange.
Part of the four programme "Inventions for Radio" series, created in collaboration with Barry Bermange, Dreams is a collection of spliced/reassembled interviews with people describing their dreams. Delia's editing and repetition, together with her dissonant, often terrifying musique concrete soundbeds, make this distinctly uneasy bedtime listening. The entire piece is 45 minutes in length.
The text from the two Radio Times entries for when it was broadcast:
7.15 The Dreams
This programme of sounds and voices is an attempt to re-create in five movements some sensations of dreaming—running away, falling, landscape, underwater, and color. All the voices were recorded from life and arranged in a setting of pure electronic sounds.
-- The Radio Times, 1964
10.15 The Dreams
The first of three Inventions for radio by Barry Bermange, in collaboration with the BBC Radiophonic Workshop. More than ten years have elapsed since these ‘re-creations in sounds and voices’ were first broadcast. They introduced a fresh genre to the medium and remain classics of radio technique.
-- The Radio Times, 1975
It also gets called "Within Dreams".