Where is my default music player?

[AC Question]

Ok so I just got a Samsung Galaxy S5 and I can not find the Music Player that my old phones had. My old phones were a Samsung Galaxy S3 and an old boost mobile s2 or something. They both had a Music Player installed in which the icon was a circle with blue on the outside and white on the inside. There was a blue play button in the middle of the circle and a green musical note towards the bottom right of it as well. It was just named "Music" Since this app came automatically with the phone I can't seem to download it or transfer it anywhere since it isnt an "Installed App". The only reason I am complaining is because my phone came with Google Play Music and Samsung Milk Music. I have no idea how Samsung Milk Music works and Google Play Music is really complicated to use and I can't even create playlists properly. The point is I really liked the default music player from Samsung galaxy s3 and I want it back again but I do not know how to get it.