The craze for blissful background music ideal for studying or chilling out to has spawned popular YouTube channels, streaming playlists and even AI-powered apps. AiMi -- which today is rolling out a major update for its generative music service -- sits squarely in the latter camp alongside peers Endel and Brain.fm. A little more than a year after its debut, the app for electronic music fans is launching a new interface that gives listeners six endless mixes to choose from. Their titles, including Serenity and Chill and Deep, give you an indication of the type of meditative, lo-fi and deep house beats on offer. So how does an AI-powered music app work? In AiMi's case, you hit play to listen to a feed of continuous music, including real tracks, generated by artificial intelligence.