SoundCloud the webapp already seems to have its UI designed for music playback (it&#x27;s a very slick and responsive design, by the way).<p>Whether the UI of the standalone app is more polished that&#x27;s debatable, but as far as <i>&quot;isolating a service to a program&quot;</i> and <i>&quot;being able to close the browser fully without closing down music&quot;</i> go - in and of themselves - using another browser in paralel looks sort of equivalent to it.<p>I don&#x27;t rule out there could be some other advantages of this solution, like smaller memory footprint etc., I addressed the specific reasons given by the parent commenter