I remember around the time 645AR’s “Yoga” went viral early in the pandemic, I started to see TikTok commenters apply the language of ASMR (“brain-tingling,” “oddly pleasurable”) to it and similar tunes like Luci4’s “All Eyez on Me” and Yameii Online’s “Baby My Phone.” The angel-high squeals in these tracks contrasted nicely against harsh bass to create a weirdly soothing friction.