Simone Dinnerstein leads the Baroklyn ensemble in an evening of chamber works by J.S. Bach to open a special Founders Day 2025 celebration that marks the Library’s illustrious century-long history as a concert presenter. Join for a preconcert conversation at 6:30 p.m. on a new book: “Let the People Hear It: Concerts from the Library of Congress at 100,” with Music Division co-authors Nicholas A. Brown-Cáceres and David H. Plylar.