harbanger (pronounced “harbinger”) is a turntable septet—an experimental hip-hop music research project exploring turntable polyphony and polyrhythm. The ensemble emerged through the creative collaboration of hip-hop activist Harry Allen and DJ Rob Swift during a 2020 Center for Art, Science & Technology (CAST) Visiting Artist residency at the Massachusetts Institute of Technology, https://loc.gov/concerts/folklife/harbanger.html