Saving My Spotify Music to an SD card using my laptop computer

[RedLeader]

I just acquired a free 32 GB micro SD card. I thought the best use of this SD card would be save all of my music to this SD card. I have a slot in my laptop where I can load the SD card. Can I use my laptop computer to access my Spotify account...I am a Premium User...and then save my music to this micro SD card? If so, how do I do this? Once done, I want to insert the SD card in either of my two cell phones have 32 GB of music available to me for long car trips, or for playing at home through my home stereo system.