I don&#x27;t see how that changes anything.<p>Post the single with a &quot;Available to buy on &lt;some date&gt;&quot; notice.  When it&#x27;s officially released, take down the notice and put up &quot;Buy now&quot; buttons.  And there&#x27;s no reason they have to make every song available for sale or every song that&#x27;s for sale available for streaming.