Article: Tap the Settings app icon, which resembles a grey box with a set of gears on it. You'll find this option near the middle of the Settings page. It's near the top of the screen. The switch will turn grey {"smallUrl":"https:\/\/www.wikihow.com\/images\/2\/25\/Iphoneswitchofficon.png","bigUrl":"\/images\/thumb\/2\/25\/Iphoneswitchofficon.png\/47px-Iphoneswitchofficon.png","smallWidth":460,"smallHeight":294,"bigWidth":"47","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of an iPhone icon\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"}. If you don't see an "iCloud Music Library" option here, you don't have an Apple Music subscription and thus cannot turn off (or on) iCloud Music Library. Doing so confirms your decision and turns off iCloud Music Library. Your Apple Music will be deleted from your iPhone; you can re-download it at any time by turning back on iCloud Music Library.

What is a summary?
Open your iPhone's  Settings. Scroll down and tap Music. Tap the green "iCloud Music Library" switch . Tap OK when prompted.