What makes ’80s music sound like ’80s music? There’s one particular sound that stands out.
Vox.com’s senior video producer Estelle Caswell showed Recode’s Code Conference audience how a single chord, first created by Igor Stravinsky in the early 1900s, became a ubiquitous marker of ‘80s hip-hop music.
Caswell can be found explaining all sorts or sound conundrums on Vox’s YouTube series Earworm. She also directed an episode of Vox’s new Netflix show “Explained” about K-Pop.
You can watch Caswell’s original video about this singular sound below.
This article originally appeared on Recode.net.