span>Route<span class="token punctuation">.</span><span class="token function">extend</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
  <span class="token function-variable function">setupController</span><span class="token operator">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token parameter">controller<span class="token punctuation">,</span> song</span><span class="token punctuation">)</span> <span class="t