trailercoreEtymologyFrom trailer + -core.nounA trend and genre in popular music, emerged in the 2010s, characterized by trailers of films, television shows, or video games being accompanied by cover versions of well-known songs performed in a somber and slowed-down style.“The “slowed-down cover” is a contagion that has spread through music to the point where it is acknowledged as its own self-contained genre: “trailercore”. / The first confirmed example of trailercore was in 2001, when Gary Jules’s tilt at Tears For Fears’s Mad World soundtracked an ad for the video game Gears of War.”