SATURDAY: Trillectro, an annual festival that brings together a diverse mix of hip-hop and EDM acts, comes to the Merriweather Post Pavilion with Chicago’s brilliant Chance The Rapper and California bass producer RL Grime headlining, and many more performers including Baltimore’s HI$TO. Hard-rock cover band Awaken performs at the Maryland State Fair. Jazz saxophonist Kamasi Washington, who made key contributions to Kendrick Lamar’s latest album "To Pimp A Butterfly," performs at Baltimore Soundstage. Olympia, Washington drone-metal band Earth performs at the Metro Gallery with Holy Sons. Chesapeake Roots presents Sean K. Preston, Rodney Henry, Danny Burns Band, and more at the 8x10. Detroit punk band Koffin Kats play the Sidebar with OC45, Dead End Lane, and more. The Redwine Jazz Band remembers the early 20th century at The Cabaret at Germano’s. Rising Baltimore rapper Young Moose's new boss, Lousiana rap star Boosie Badazz, performs at Echostage in D.C. Don’t miss: Windjammer, a very special all-day festival at Pier Six Pavilion to benefit the Believe In Music program, features a fantastic lineup of Baltimore independent acts including Beach House, Future Islands, Dan Deacon, Ed Schrader’s Music Beat, Bond St. District, Romantic States, James Nasty, and more.