Fair use is a legal doctrine that primarily exists in the copyright law of the United States. Fair use limits the exclusive rights granted by copyright and allows the use of copyrighted material for certain limited purposes only, without requiring permission from the rights holder and depending on the exact use of the original work to be determined on a case by case basis. Purposes recognized under fair use may be such as criticism, comment, news reporting, teaching and similar activities.
However, uploading a track for non-commercial and promotional purposes to SoundCloud does not fall within the fair use exemption. Moreover, fair use is not recognised in every country. Keep in mind that SoundCloud is a global platform, we expect all our users to respect copyright on a worldwide basis.