I have a copy of the Japanese vinyl. Strangely enough, I bought that several years before I saw a copy of the original French issue - skipped buying the one from France because I already had the other.
The liner notes, dated September 10, 1976, are credited to Acklyn R. Lynch - Washington, D.C., speak briefly about Mao's life and death and the revolts in South Africa, and are fairly heavy into the political rhetoric of the time. No quotes from the musicians.
No recording date given on my copy. I have seen three discographies that list the recording date as summer, 1976. Though perhaps all three took their date from the same source.