The boy has a really phenomenal command of the keyboard and some of his elaborate fingering was brilliant.
The most is made of his skillful technique, a Wagnerian concerto being selected to display intricate effects.
Willie Eckstein, an “infant wonder” at the piano, was decidedly well liked.
This was perhaps above the musical taste of the audience, but was interesting as a display of the youngster's precocity.
Variety 6:4 (06/21/1907)