"…In Beethoven’s Moonlight Sonata Bax succeeded in rendering Beethoven’s intended harmonic blurring in the first movement. But this decisive detail was always paired with the utmost concentration and a discreet pulse, hypnotic and implacable. The most impressive feat is the way Bax shows such an amazing attention to minute details (hard to imagine the trills in the Presto more expressively rendered) without ever losing the general picture, in a way that each passage seems to be charged with what is about to come, even if much later."
… Mussorgsky’s Pictures at an Exhibition was the gravitational center of the performance. Bax was a master of transfiguration, like a passerby looking at a picture and getting lost in it: he was the troubadour singing his elegy, he was the children at play, he was Mussorgsky, and at the same time he never stopped to be himself. As it happens in any picture, there are corners, characters and hidden pictures in the background. We cannot say that his version showed them all , if would be impossible, but there was an extraordinary thoroughness.
La Nacion (Buenos Aires)