Ellen Ballon and the First Piano Concerto

This is very cool: a letter from the Canadian pianist Ellen Ballon to Heitor Villa-Lobos, setting out the arrangements for her commission for his 1st Piano Concerto, in 1945. This is from the new Museu Villa-Lobos website.

Ballon played the world premiere of the work in 1947 with the Dallas Symphony under Antal Dorati, while the Canadian premiere took place at Plateau Hall in Montréal in 1953, with the OSM under Désiré Defauw. She did indeed record the work for the first time, for London in 1949, with the Orchestre de la Suisse Romande under Ernest Ansermet.