Referência Seu conteúdo
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SoundCloud does not claim any ownership rights in Your Content, and you hereby expressly acknowledge and agree that Your Content remains your sole responsibility.
Without prejudice to the conditions set forth in Your Use of the Platform you must not upload, store, distribute, send, transmit, display, perform, make available or otherwise communicate to the public any Content to which you do not hold the necessary rights. In particular, any unauthorized use of copyright protected material within Your Content (including by way of reproduction, distribution, modification, adaptation, public display, public performance, preparation of derivative works, making available or otherwise communicating to the public via the Platform) may constitute an infringement of third party rights and is strictly prohibited. Any such infringements may result in termination of your access to the Platform as described in the Repeat Infringers section below, and may also result in civil litigation or criminal prosecution by or on behalf of the relevant rightsholder.
Isso é muito claro. Não faça upload de conteúdo que não pertença a você. Pode haver grandes penalidades.