Sidecar is the new iOS 13/macOS Catalina feature that lets you use an iPad as an extra display for your Mac. But it also lets you send any app off to your iPad. Then you can wander off and use that ...

Apple's Logic Pro is an app that's permanently on my "learn how to use properly" list. I'd like to get into it more and start really using it to make some music, but I can never find the time.