How to use the Remote app to control your iTunes library in macOS Sierra

If you have an iPhone, iPad or iPod you can use the Remote app — free at the Apple App Store — to control your Mac’s iTunes library from a distance. 

First, pair the app with the iTunes library (or libraries) you want to control. Your device and your computer must be on the same wireless network.

If you have Remote 2.0 (or later) and Home Sharing is turned on, you can set Remote to pair automatically with any of the iTunes libraries on your Home Sharing network. You can also pair Remote directly with iTunes libraries that aren’t in your Home Sharing network. To pair the Remote with an iTunes library: 

  • Tap Remote on your device’s Home screen.
  • Tap Add an iTunes Library.
  • A 4-digit code appears.
  • Open iTunes on your computer and click the Remote button . 
  • Type the 4-digit code in the iTunes window.
  •  
  • iTunes pairs the library on your computer with the Remote app on your device.
  • Pair Remote with your Home Sharing network.

To use Remote 2.0 (or later) with Home Sharing, every iTunes library you want to control must have Home Sharing turned on. 

  • Tap Remote on your device’s Home screen.
  • Tap Settings.
  • Tap to turn Home Sharing on.
  • Type your Apple ID and password, and tap Done.
  • Tap the iTunes library or Apple TV you want to control.

(This how-to is based on my experiences and info on Apple's support pages.)