Cecil Taylor December 1, 1966
Only Cecil Taylor Research Group lists this session. It writes that the information is derived from the Jan Strom Jimmy Lyons sessionography (2000), which has been referenced and listed as the primary source for other Cecil Taylor session information as well. For this particular session, the Cecil Taylor Research group source also references a movie entitled "L'Oute Corte" (On The Other Side Of The Tracks) and writes that it was produced by Luc Ferrari. A wikipedia page for the movie was found, but it does not seem to be the same movie mentioned in the source.