diff --git a/README.md b/README.md
index 3a5a43e..d7c059f 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,7 @@
 turnt-ninja
 ===========
+
+External programs required are sonic-annotator and qm-vamp-plugins, sources for which can be obtained from:
+http://code.soundsoftware.ac.uk/projects/sonic-annotator/files
+and
+http://isophonics.net/QMVampPlugins
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