Daycore

a daycore remix

Perhaps extending from their relative ubiquity on TikTok's predecessor Musical.ly, nightcore audios have a strong presence on the app; so do their opposites, "daycore" or "anti-nightcore" remixes, in which tracks are slowed down for a heady, sluggish effect.

If you've heard of the reverb + slowed trend, congrats, you've been listening to music on YouTube. The slowed trend is just one of many YouTube music trends, earlier versions of which include Nightcore and Daycore.