This indeed was the initial intention. I think once the site is much more robust, and has more contributors, there is opportunity to either section the site (stemstr/created with stemstr), or to break off branding for finished products to a sister site. As it stands now everything uploaded to stemstr generates a “remix” button so technically you are being given permission, at least from the uploader, to use a clip of the 3:30 second song they just uploaded.