Michael Potuck, 9to5Mac:

Ahead of WWDC in June, Apple announced Background Sounds would be coming to iOS to help users find focus, calm, and rest. Now in the iOS 15 beta, the feature is available to test out. Read along for how to use iPhone Background Sounds in iOS 15, what you get, what you don’t, and more.

Background Sounds is definitely worth knowing about. You’ll find them in both iOS 15 and iPadOS 15 in Settings > Accessibility > Audio & Visual > Background Sounds.

The default sound is the sound of rain, with critter sounds in the mix. I find it very soothing. Did all my writing with that on in the background.

There are switches to leave the sound playing (at reduced volume) when other media is playing, as well as when the screen is locked.

And to make this a bit easier to turn on and off, go to Settings > Accessibility > Accessibility Shortcut and enable the Background Sounds shortcut. That’ll add a Background Sounds toggle to the Accessibility Control Center control (which you’ll also need to add to Control Center).

Worth exploring.