I’m a huge fan of using SoundCloud to share audio tracks over the web – but what if you don’t want to share with the whole internet – how do you share private tracks?
There’s a very simple solution, something which quite often gets overlooked – using the share link.
When you create a share link for private files a secret code is added to the end to allow people to access the tracks.
A share link can be created for either tracks or playlists and will allow people to directly access your tracks.
So whilst people won’t browse your profile to access your private tracks, they will be able to access the tracks through the share link you provide them.
Source: http://help.soundcloud.com/customer/portal/articles/243676