If you heard Gabriel Kahane in IPR's Studio One last year, you can hear his musician dad Jeffrey on Performance Today at 5 PM. He performs Bach with Hilary Hahn, Mozart with the New York Philharmonic (he plays the piano solo and conducts as well), and Kenneth Frazelle's "Fiddler's Galaxy" with Joseph Swensen. The program also features violinists Gidon Kremer and Christian Tetzlaff, and pianist Ingrid Fliter.