The uploaded music can be shared among all SoundCloud users or with particular group like family members or friends. Music once uploaded will receive comments and this will popularize music among vast number of SoundCloud users.
If you have come across any good tunes in SoundCloud and want to download it to your desktop. Then try this Google Chrome Extension known as SoundCloud Downloader. ( Note: SoundCloud Downloader is not available anymore, you can try this userscript known as Soundcloud Super +2 instead )
Once installed, a Download Button will appear at the Left top of the SoundCloud Player.
• Click on the ‘Download’ Button. This will open a new page
• Press Ctrl + s and select a location to save the mp3 file
• As the song starts streaming, the mp3 file will get saved to selected location