diff --git a/README.md b/README.md
index 51959b6e50a9db1f69902894a8c64c7f0e1ae62c..b6d0130a9f7868e93d1855fcf5d582da1b44b3c9 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,7 @@ Little sequencer
 
 * multiple channels
 * velocity support
+
+## NOTE
+
+* It's not endless, memory gets exhausted around 1M notes