Visit the iTunes website and download the software application to play and purchase the MP3s of your choice.
Create an iTunes account once the software has completed its installation process. The method of setting up an account will vary slightly depending on which version you are using. A series of on-screen instructions will guide you through the account making process. You will need to give your credit card payment information.
Search the iTunes database for the international recording artist whose music you want to purchase. Enter the artist's name, song/album title, or other keywords into the "Search" bar at the top of the application's screen. Click "Buy" to purchase and download the musical piece(s) onto the internal drive of your computer.
Visit the Amazon MP3 website. Enter the international recording artist's name, the song/album title, or both into the search field at the top of the screen. When you see the results, you will be able to preview the song by clicking on the "Play All Samples" button on the middle of the screen.
Click on either the "1 Click" button to go to the instant download page, or the "Add" button to add the song or album to your virtual shopping cart. By adding the track to your cart, you can continue searching for more international artists before checking out. When you are finished compiling your cart, click on "1 Click" to make your purchase.
Create an Amazon customer account when proceeding to checkout by entering your email address, clicking on the "No, I am a new customer" button when the system prompts you for your password, then clicking the "Sign in using our secure system" button. You will need to give your name, credit card information and billing address. After making your account, click "Continue" to complete your purchase and download the MP3.