Ken Iisaka

Rafal Blechacz is among the select few who evidently were chosen to carry Frédéric Chopin’s torch to an international audience. His recital Saturday at Herbst Theatre blazed brightly.

The world of music for two pianists is a rarified one. Established as an art form in the Mozart family for its two talented children, then popularized by Schubert at coffeehouses in Vienna, and finally made immortal by Brahms, the two-piano/four-hands repertoire has occupied an important but often neglected corner in the vast richness of piano music. The Milton and Peggy Salkind International Piano Duo Festival celebrates that repertoire.