Made using the AI behind the app Endel, Wind Down doesn’t just sound like a sleep aid—it’s designed specifically with sleep in mind: 15 tracks forming a smooth, atmospheric ribbon of sound. In some ways, it’s a one-off—Blake’s channeling of Brian Eno circa Thursday Afternoon or the synthesizer explorer Steve Roach. But in another way, you can hear it as an extension of what the British singer, songwriter, and producer has been making since 2011’s James Blake: gentle, soulful music that taps into states inaccessible to the rational mind.