Play youtube in Background on Android

1. Don't use You tube app!!!!
2. Open youtube with Chrome
3. Request open as Destop Site
4. Let the music on youtube playing, then open next Tab
5. Your music might stop by now, don't worry. Look at the top left of your screen. The Volume icon should be shown. Click on it and play the music again. 
6. Now you're good to open another App.