When Kronos Quartet came to the Walker in February, they performed Missy Mazzoli’s composition “Harp and Altar.” Tomorrow, Missy Mazzoli herself will be playing alongside esteemed violist Nadia Sirota in Walker Gallery 2. This is a Sound Horizon event, where musicians install themselves in the Event Horizon exhibition, and the event kicks off the String Theory Music Festival. Time Out New York called Missy Mazzoli “Brooklyn’s post-millennial Mozart,” and you can preview some of the beautiful work she does with her ensemble, Victoire, in the video above. Missy Mazzoli will also be performing Sunday with Victoire & JACK Quartet as part of the String Theory Music Festival, click here for further details.