diff --git a/include/bundled-plugins-instruments.html b/include/bundled-plugins-instruments.html
index dc14a2aa..62098bae 100644
--- a/include/bundled-plugins-instruments.html
+++ b/include/bundled-plugins-instruments.html
@@ -37,6 +37,14 @@
   triangle.</li>
 </ul>
 
+<p>
+  This instrument plugin doesn't work without 3rd party SF2 files, otherwise
+  it will be silent.
+  <a href="https://discourse.ardour.org/t/where-to-find-nice-soundfonts/107686">This thread</a>
+  on the Ardour forum has a number of links to royalty-free samples in the SF2
+  file format.
+</p>
+
 <h2>General MIDI Synth</h2>
 
 <p>