diff --git a/examples/simple-piano.py b/examples/simple-piano.py
index 8ebe252..3787b05 100755
--- a/examples/simple-piano.py
+++ b/examples/simple-piano.py
@@ -66,7 +66,9 @@ def load_samples(patch):
 
 
 def handle_note(channel, pressed):
-    channel = channel + (12 * octave) + NOTE_OFFSET
+    channel = channel + (12 * octave)
+    if len(samples) > 13:
+        channel += NOTE_OFFSET
     if channel < len(samples) and pressed:
         print('Playing Sound: {}'.format(files[channel]))
         samples[channel].play(loops=0)