La Valse à mille temps and Ne me quitte pas followed in 1959. His work combined detailed writing with theatrical delivery, giving performances an importance that cannot be captured by a song title alone.

The Fondation Brel now preserves archives and presents museum material in Brussels. Its accounts document that institutional work; they are useful research destinations but should not be displayed as personal social feeds by Brel.

The foundation’s October 2018 newsletter describes an anthology spanning recordings from 1953 to 1977: thirteen studio collections, seven live albums, alternate versions and early radio material. It places the late album Les Marquises within a longer recording history. A box set is therefore an archive of different periods, rather than a new performance. Its studio, radio and concert labels help listeners identify the setting of each recording.

The biography dates Knokke to 1963, the Olympia farewell to 1966 and his last stage performance at Roubaix to 1967.

The foundation’s permanent exhibition combines manuscripts, photographs, contemporary press and recorded testimony. Its listening stations include different versions of songs, while filmed material includes Knokke in 1963 and the 1971 Brel Parle interview. These are complementary sources: the concert shows performance, and the interview preserves his own account of his work.