It was identified and assembled from multiple sources by Jay Rosenblatt, a doctoral candidate at the University of Chicago.
Parts of the score were located in Weimar, Nuremberg and Leningrad, and, to the extent they were known at all, it had been assumed they were early drafts of Liszt's Piano Concerto No.
Liszt made no mention of this third concerto in his writings, so the existence of the piece was unknown to researchers.
[1] The concerto was premiered by Janina Fialkowska on May 3, 1990, with the Chicago Symphony Orchestra, Kenneth Jean conducting.
[2][3] It has not yet entered the standard repertoire, and remains little known, although there have been recordings by Janina Fialkowska, Jerome Lowenthal,[2][4] Louis Lortie, Jenő Jandó, Leslie Howard,[5] and Joshua Pierce.