STEPS
TOOLS
Open iTunes.
Go into your purchased playlist
Open "Download Previous Purchases"
You'll see this!
Select the artist of the song(s) you want to download.
Press the little cloud button.
And the song will download to your computer for free!
Now you can save money by not re-buying songs!
 iTunes

How to download songs you've bought on other devices

I hate re-buying songs I've already bough on other devices on my laptop! Here's how to get those songs you've already downloaded for free!