The first rehearsal in March 1942 was intended to be three hours long, but had to be stopped after 15 minutes because the 30 musicians present were too weak to play their instruments.
O primeiro ensaio, que tivo lugar en marzo de 1942, tiña unha duración de tres horas, mais tivo que parar logo de 15 minutos porque 30 das persoas que integraban a orquestra e que asistiron ao mesmo estaban demasiado febles para tocar os seus instrumentos.