[1] He showed what turned out to be a lifelong interest in chamber music, studying with the violist William Primrose and the cellist Gregor Piatigorsky.
He was a champion of contemporary American music, and commissioned, premiered and recorded Elliott Carter's piano concerto.
[2] As a chamber musician, Lateiner's name is associated with those of Jascha Heifetz and Gregor Piatigorsky, with whom he shared a Grammy Award for their recording of Beethoven, and that of the Amadeus Quartet.
In this he was highly critical of many of the published editions of Mozart's music, instead advocating that performers should consult original sources themselves.
A two-disc set of his live performances, The Lost Art of Jacob Lateiner, has been published by Parnassus Records.