><a href="#C3_L6" id=C3_L6></a></span></code></pre></div>
<p>Because <code>name</code> and <code>artist</code> are persisted information, and thus stored
on the model, the controller looks them up there and provides them to
the template.</p>
<p><code>soundVolume</code>, however, is specific to the current user's session, and
thus stored on the controller. The controller can return its own value
without consulting the model.</p>
<p>The advantage of this architecture is that it is easy to get started
by acces