Play mp3 files from multiple folders and how to make playlists from mp3 files

Is it possible to play mp3 files from multiple folders? I can only play the files within a folder (no random play unfortunatelly). After playing the last file in the folder the music stops or starts again with the first song.

I would like to play alle my mp3 files which are placed in multiple folders (ordered by artist), is it possible?

 

I also cannot find how to make a mp3 playlist, suggestions anyone?