“Clear some space out, so we can space out,” Shabazz Palaces’ Palaceer Lazaro chanted six years ago on “Recollections of the Wraith,” perfectly summing up the Seattle abstract-rap duo’s experimental aesthetic. Led by Lazaro, aka Digable Planets leader Ishmael “Butterfly” Butler, Shabazz Palaces first fascinated critics and rap nerds with a pair of 2009 EPs, then, two years later, released the full-length masterpiece Black Up, dense with Afrocentric lyricism and darkly trippy production that still feels ahead of its time. 2014’s Lese Majesty introduced the duo’s penchant for innovative structuring, which they explored even further with this year’s pair of connected concept albums, Quazarz: Born on a Gangster Star and Quazarz vs. The Jealous Machines. Based on the earthly arrival of extraterrestrial protagonist Quazarz, the albums are full of clear-headed perceptions of our strange planet’s political climate and pop culture. Kill the Vultures, three-fifths of ZULUZULUU, and Porter Ray open this Red Bull Sound Select show. RSVP at www.redbullsoundselect.com/events/2017/09/red-bull-sound-select-presents-twin-cities.