Can't buy songs off iTunes anymore?

Thanks Jim, I now know how to buy songs without subscribing to Apple Music.

For others that have this same question, a note, to add to Apple's instructions found at this link. The instructions say to click on the itunes store tab top right corner after searching for a song. Well I found the option to do that very fleeting. It would appear & disappear very quickly. Just keep your eye on the top right, and when the three tabs (Apple Music - Your Library - iTunes Store) are visible, click iTunes Store before you do anything else. Before that however, make sure you have ticked to show iTunes Store from the Music app preferences, BUT do not click on the iTunes tab on the left side of the screen. It does not work. It only traps you in a cycle of pop up ads to join Apple Music. Only click on the iTunes Store tab when ever it appears top right of your screen.