Spectacular technical skills at Chicago Symphony Center March 25. The ability to play from memory and with such breadth and depth the final sonatas of Schubert was a sight to behold. It makes one ponder on the advanced abilities of homo sapiens versus the other species. Mitsuko Uchida appears as a physically frail individual, but the power and control emanating from her when she touches the keys is palpable. Mesmerizing.