Helene Grimaud to Join the LA Phil For Two Evenings of Brahms' First Piano Concerto, 8/6 & 8Immensely talented pianist Helene Grimaud comes to the Hollywood Bowl to perform Brahms' monumental First Piano Concerto with the Los Angeles Philharmonic, Tuesday and Thursday, August 6 and 8, at 8 pm. Leading the LA Phil on those evenings is rising-star American conductor, James Gaffigan, in his Hollywoood Bowl debut.