Music
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FOLK IN THE PARK Singer-songwriter Dar Williams performs as part of Madison Square Park’s summer music series. Tonight, 7 p.m., Madison Square Park, Fifth Avenue at 23rd Street, 212-538-5058, free.
AVANT IMPROV Guitarist Robert Fripp performs “Solo Soundscapes,” an improvised piece in which he controls and reacts to his guitar’s delay units. Tonight, 8 p.m., New York Society for Ethical Culture, 2 W. 64th St., at Central Park West, 212-307-7171, $37.50.
RUMBLING ROYALTY Famed percussionist Evelyn Glennie plays the music of Nebojsa Zivkovic, Mathias Schmitt, and others at a “Free for All at Town Hall” concert. Sunday, 5 p.m., Town Hall, 123 W. 43rd St., between Sixth Avenue and Broadway, 212-707-8787, free. Tickets are available at noon on the day of the concert.
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