The Libran Preces and Responses were composed in October 1972 for ATBrBB unaccompanied.
Note under title: "Entitled 'Libran', since composed during the sun's alleged transit of the constellation Libra".
We have typeset the original F major version for ATBrBB (click here for the PDF score). The score was kindly sent by Guy Turner, who reports that the responses were used recently by the St Michael's Singers at Southwell Minster.
You may listen and download MusicXML here https://musescore.com/user/72156/scores/4766071.
We have also arranged and published an SATB version in A major (click here for the PDF score).You may listen and download MusicXML here https://musescore.com/user/72156/scores/4684776.