“Fan described Scriabin’s Piano Sonata No. 5 as an “orgy” of mysticism. His big technique proved to be up to its demands (the great pianist Sviatoslov Richter said it was one of the hardest pieces ever written), as he caught both the roiling drama and the far-off quality of the softer passages. The rhapsodic climax was stirring and convincing.
From that same year came Leon Kirchner’s last piece, Sonata No. 3, “The Forbidden.” Fan had been Kirchner’s student at Harvard and commissioned the sonata from him. It is full of turbulence, always edging forward, rarely at rest, and the student expressed his teacher’s intentions admirably.” – Gibert Mott, NewsTimes