Is there a free and easy way to download music from iTunes to another device?

I recently bought a Samsung phone and wanted to transfer my music that I have in iTunes to it. I have an SD card that I can put into the phone. Is there an easy and free way to transfer the music from iTunes to the SD card?

If iTunes is on your computer the Google Play music app will import your music…

or Samsung have their own transfer app…

http://www.samsung.com/...tunes.html