Samsung Galaxy S4: How to Delete Music Files in a Windows Computer via Windows Explorer App

If you can't delete your music files directly from your Samsung Galaxy S4, e.g: when the screen is broken but the phone can still be turned on, then alternatively you can connect your phone with your Windows PC and then delete the music files using Windows Explorer app. It can also be an alternative way if you have not had the Samsung Kies 3 app in your PC yet. However, if you'd like to backup