A serious contender to be the coolest thing ever to happen at the library, the Saturday-night, after-hours ruckus "Machinations at the Library" sees a crew of interdisciplinary artists creating a mess and making some noise throughout the building — interacting with its collections as they see fit. Under the progressive aegis of Machine Project's public programming, these films, sound pieces, dances, performances and sculptural installations deal directly with the library as both a democratic civic space and an archive of shared history. Participating artists include video artist and Yo Gabba Gabba project director Joel Fox; poet and visual artist Jibade-Khalil Huffman, whose work can be seen in the Hammer's current Made in L.A. biennial; intergalactic performance artist and peace-propagation researcher Jeepneys; Jmy James Kidd, a renowned indie designer/ choreographer and operator of Pieter Performance Space; and experimental composer Tara Jane ONeil. Organizers promise an "interactive multimedia playground, allowing for a unique participatory experience," which is what the library should always be if you're using it right. Los Angeles Public Library, 630 W. Fifth St., dwntwn.; Sat., July 26, 8 p.m.; free. (213) 228-7500. lfla.org.