You can open My Files app. Click internal storage. Click Music folder. Now you can create any folder you want and name it any name you want. Once done, the folder you have create before should appear under Samsung Music folder tab.
You can find almost all the files on your smartphone in the My Files app. By default, this will appear in the folder named Samsung. If you are having trouble finding the My Files app, you should try using the search feature. To begin, swipe up on your home screen to see your apps.
