diff --git a/src/main/res/raw/misc.forth b/src/main/res/raw/misc.forth
index 661b6a9..45867cf 100644
--- a/src/main/res/raw/misc.forth
+++ b/src/main/res/raw/misc.forth
@@ -13,4 +13,6 @@
     } each
     tbl ;
 
-: ms ( n -- ) 'java.lang.Thread/sleep/l' jvm-call-static ;
\ No newline at end of file
+: ms ( n -- ) 'java.lang.Thread/sleep/l' jvm-call-static ;
+
+: tone ( hz ms -- ) swap 'com.vectron.forthcalc.support.Tone/play/di' jvm-call-static ;
\ No newline at end of file