How can I play music on my S4 without an SD Card?

[AC Question]

I transferred all my music from my tablet to my Galaxy S4 recently, and I wanted to know if there was an app or something that I can use to play my music without an SD card. I really don't want to spend any money on one right now.

 

[Rukbat]

Almost any music player plays files that are on the phone. Not all of them play files that are on the SD card. So any music player should work.