How does SoundCloud aggregate the playcount
<p>My team and I are looking to use the embedded SoundCloud widget for a site we're building. We'd like to use the API to track the total number of plays by tracking the <code>playback_count</code> property for each track, however I've not been able to find specific information on how/when this is incremented. I'm looking to answer:</p>

<ol>
<li>Does is only track completed plays? Or started plays?</li>
<li>Does it track multiple plays by the same user/client?</li>
<li>Does it track plays made by the streaming URL (in a custom player) or only the embedded player/SoundCloud website?</li>
<li>It appears that the <code>playback_count</code> is not updated immediately, is the <code>playback_count</code> updated (nightly/hourly etc.)?</li>
<li>Is there a list of supported browsers/devices for the
embed?</li>
</ol>