diff --git a/doc/7-systems/c219.md b/doc/7-systems/c219.md
index 44d0cafd0..3c27f6f7e 100644
--- a/doc/7-systems/c219.md
+++ b/doc/7-systems/c219.md
@@ -7,6 +7,12 @@ this chip features:
 - stereo soft panning
 - accepts either 8-bit PCM or proprietary 8-bit µ-law compressed PCM samples
 
+## sample memory notice
+
+this chip is rather unique when it comes to sample memory. be sure to read this notice.
+
+the channels are PLEASE FINISH THIS LATER!
+
 ## effects
 
 - `11xx`: **set noise mode.**