t;)</b>
<b class="nc">&nbsp;                    .&lt;String, Map&lt;String, Number&gt;&gt;group()</b>
<b class="nc">&nbsp;                    .by(&quot;songType&quot;)</b>
<b class="nc">&nbsp;                    .by(</b>
<b class="nc">&nbsp;                            __.bothE()</b>
<b class="nc">&nbsp;                                    .group()</b>
<b class="nc">&nbsp;                                    .by(T.label)</b>
<b class="nc">&nbsp;                                    .by(</b>
<b class="nc">&nbsp; 