I'd like to know how I can save or record music from Spotify if possible ?

I use a software to record music from Spotify, it’s called audials tunebite and it basically records whatever you hear on your computer. so if you only play your spotify playlist, this is what it will record; plus, it recognizes the song, names it and then if you need to, you can also convert the files to different formats (mp3, aac, m4a, flac, ogg, wav, wma etc.).There's some guide :
http://audials.com/en/how_to_record_internet_radios/spotify.html