You press the download button in iTunes shop or amazon.com shop: http://www.amazon.com/MP3-Music-Download/b/ref=sa_menu_mp3_str1?ie=UTF8&node=163856011
Unluckily, the latter service is only available in the US. But iTunes is available world-wide as far as I know. If you don't live in the US, you might have local Internet shops for music.
Kees
how do you start downloading music.?

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