Find "Music"
Press the menu icon.
Press Music.
Create playlist
Press the library icon.
Press Playlists.
Press Create new playlist.
Press the required audio files to add them to the playlist.
When the box next to an audio file is ticked (V), the audio file is selected.
Press Create.
Press the text input field and key in a name for the playlist.
Press OK.
Exit
Press the Home key to return to standby mode.