Addresing feedback from @rtoy

Author: hoch

index.html

@@ -5928,7 +5928,7 @@ <h2 id="AudioWorklet-concepts">
               <dfn>node name to parameter descriptor map</dfn>
             </dt>
             <dd>
-              Belongs to <a>BaseAudioContext</a>. This map contains the
+              Belongs to <a>BaseAudioContext</a>. This map contains an
               identical set of string keys from <a>node name to processor
               definition map</a> that are associated with the matching
               <a>parameterDescriptors</a> values. This internal storage is
@@ -6633,7 +6633,7 @@ <h2 id="instantiation-of-AudioWorkletNode-and-AudioWorkletProcessor">
             "#widl-AudioWorkletNode-port">port</a> to <var>nodePort</var>.
             </li>
             <li>Let <var>parameterDescriptors</var> be the result of retrieval
-            by <var>nodeName</var> from <a>node name to parameter descriptor
+            of <var>nodeName</var> from <a>node name to parameter descriptor
             map</a>:
               <ol>
                 <li>Let <var>audioParamMap</var> be a new <a>AudioParamMap</a>
@@ -6662,6 +6662,20 @@ <h2 id="instantiation-of-AudioWorkletNode-and-AudioWorkletProcessor">
                     <var>audioParamMap</var>, set that <a>AudioParam</a>'s
                     value to <var>value</var>.
                     </li>
+                    <li>
+                      <var>paramNameInOption</var> will be ignored when:
+                      <ul>
+                        <li>
+                          <var>audioParamMap</var> does not have any entry with
+                          the same name member.
+                        </li>
+                        <li>
+                          <var>value</var> is not a type of <code>Number</code>
+                          or out of the range specified in
+                          <a>AudioParamDescriptor</a>.
+                        </li>
+                      </ul>
+                    </li>
                   </ol>
                 </li>
                 <li>Set <var>node</var>'s <a href=