s="token operator">=</span> hash<span class="token punctuation">[</span><span class="token string">'song_count'</span><span class="token punctuation">]</span>
    <span class="token keyword">delete</span> hash<span class="token punctuation">[</span><span class="token string">'song_count'</span><span class="token punctuation">]</span>
    <span class="token keyword">return</span> <span class="token keyword">super</span><span class="token punctuation">.</span><span class="token function">normalize</span><span