Hungary has produced more than its statistical share of brilliant, genre-bending music. Tonight, Q2 host Nadia Sirota will lead a conversation with Esa-Pekka Salonen, the renowned and innovative conductor who conceived the New York Philharmonic's "Hungarian Echoes" Festival, a showcase of this inventive music, opening on March 10.  The evening will include special performances of works by Haydn, Bartók, and Ligeti (including Ligeti harpsichord works), performed by Philharmonic musicians, pianists Conor Hanick and Marino Formenti, and others.