Debian
1.edit source list
sudo gedit /etc/apt/sources.list
# add this deb http://repository.spotify.com stable non-free
2. If you want to verify the downloaded packages,you will need to add our public key sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 94558F59 3. apt-get sudo apt-get update 4. Install sudo apt-get install spotify-client