Summarize this article in one sentence.
This app icon is grey with a cog image and is on one of the home screen. It may also be listed in the "Utilities" folder on the home screen. This is in the sixth section of options.   You can choose between Family, Individual, or College Student depending on your needs and eligibility.  Enter your email (if prompted) → enter your password → click OK. This allows Apple Music to help curate content for you.  Double tap genres to emphasize your preference. Tap and hold genres to remove them from the list.  Double tapping and tap and holding artists does the same as with genres. You can manually add artists by tapping Add an Artist. You must pick at least 3 before continuing. You are now a member of Apple Music and can start listening from the Apple Music app. Your subscription will be automatically renewed each month. If you don't want this to occur you can cancel it.

Summary:
Open your device's Settings. Scroll down and tap Music. Tap Join Apple Music. Tap Try it Free. Tap a subscription plan. Tap Start Free 3 Months. Sign in with your Apple ID. Tap genres you like. Tap Next. Tap artists you like. Tap Done.