Check your email...
After making a purchase from a Single-powered store you will receive an email with download links. You do not need a Single account to download your purchases and each link is valid for 3 downloads. After the download limit has been reached you will be prompted to contact our support team.
Once the download has completed, located the folder on your computer (Most likely this will automatically go into your Downloads folder if you don't choose a different destination).
Note for iPhone & iPad users - due to Apple's iOS restrictions you will need to download your music to a computer and sync via iTunes.