Where are music files downloaded from the Google Play Store stored on an Android device?

I am wondering how music files, downloaded from the Google Play Store, are stored on an Android device. In other forums on this site, I found that they are located in the /sdcard/Android/data/com.google.android.music/cache/music directory. However, I am wondering how the files are named, or organized. Are they named based on the song name, so for example, would the song "Style" be named under "style.mp3"? Also, are the files organized in a certain file based on a playlist, etc?