Thank you for this information, which is indeed correct. Mine came from a Polish source close to Acte Prealable, but would appear to be incorrect. I accepted it at face value but, having checked my copy of the Olympia disk, there is no doubt that the performers on the two disks are different. Does this mean that the orchestral version of the Ballade is still in existence, however? If the Acte Prealable recordings from Polish Radio, Cracow, date from 1984 or 1990 the Ballade could easily have disappeared since that time, of course. But it would be nice to learn that it had not and that my researches have just, to date, produced the "wrong" answer. On the other hand, it might be that someone else has gone to the trouble of orchestrating Rozycki's Ballade, though I think this is unlikely. I will make a direcrt enquiry of Acte Prealable and see what I can find out.