enable auto-play in Chrome.
Step 1: Step 1
As you known Google Chrome has shuts down Auto-play in Background Tabs. It mean when you open video in youtube and open a new tab to do another thing, youtube will not auto-play next video unless you click on youtube tab again.
Some people find it helpful but It really piss me off. When i want to listen music, i must click on background tab every time video end, some time i forgot it and song stop playing. And no option for user to enable it. It take time for me to find out how to deal with it.
Solution: Don't make youtube tab as background tab. You can drag that tab into a new window and do stuff in other window. Thus youtube window will auto-play your songs even you minimize it.