diff --git a/i38.sh b/i38.sh
index e674dbe..791ed2c 100755
--- a/i38.sh
+++ b/i38.sh
@@ -367,6 +367,15 @@ bindsym Control+Shift+F9 move container to workspace number \$ws9, exec spd-say
 bindsym Control+Shift+F10 move container to workspace number \$ws10, exec spd-say -P important -Cw "moved to workspace 10"
 
 
+# A mode that will pass all keys except $mod+shift+backspace to the current application.
+# Use $mod+shift+backspace to exit the mode.
+bindsym $mod+shift+BackSpace mode "bypass"
+mode "bypass" {
+# Exit bypass mode.
+bindsym $mod+Shift+BackSpace mode "default"
+}
+
+
 EOF
 
 # Create ratpoison mode if requested.
diff --git a/scripts/sound.py b/scripts/sound.py
index 9fd3e28..46f74a4 100755
--- a/scripts/sound.py
+++ b/scripts/sound.py
@@ -14,10 +14,12 @@ def on_new_window(self,i3):
 
 def on_mode(self,event):
     mode= event.change
-    if mode == 'default':
-        system('play -qV0 "|sox -np synth .07 sq 400" "|sox -np synth .5 sq 800" fade h 0 .5 .5 norm -20 reverse &')
-    else:
+    if mode == 'ratpoison':
             system('play -qV0 "|sox -np synth .07 sq 400" "|sox -np synth .5 sq 800" fade h 0 .5 .5 norm -20 &')
+    elif mode == 'bypass':
+        system('play -nqV0 synth .1 saw 700 saw 1200 delay 0 .04 remix - norm -6')
+    else:
+        system('play -qV0 "|sox -np synth .07 sq 400" "|sox -np synth .5 sq 800" fade h 0 .5 .5 norm -20 reverse &')
 
 def on_workspace_focus(self,i3):
     #system('play -qnV0 synth pi fade 0 .25 .15 pad 0 1 reverb overdrive riaa norm -8 speed 1 &')