ardour/gtk2_ardour/mixer.bindings

 <Bindings name="mixer">
  <Press>
   <Binding key="s" action="Mixer/solo"/>
   <Binding key="m" action="Mixer/mute"/>
   <Binding key="Secondary-i" action="Mixer/toggle-midi-input-active"/>
   <Binding key="r" action="Mixer/recenable"/>
   <Binding key="0" action="Mixer/unity-gain"/>
   <Binding key="Up" action="Mixer/increment-gain"/>
   <Binding key="Down" action="Mixer/decrement-gain"/>
   <Binding key="Left" action="Mixer/scroll-left"/>
   <Binding key="Right" action="Mixer/scroll-right"/>
   <Binding key="Primary-x" action="Mixer/cut-processors"/>
   <Binding key="Primary-c" action="Mixer/copy-processors"/>
   <Binding key="Primary-v" action="Mixer/paste-processors"/>
   <Binding key="Delete" action="Mixer/delete-processors"/>
   <Binding key="BackSpace" action="Mixer/delete-processors"/>
   <Binding key="Return" action="Mixer/toggle-processors"/>
   <Binding key="Primary-a" action="Mixer/select-all-processors"/>
   <Binding key="slash" action="Mixer/ab-plugins"/>
   <Binding key="Escape" action="Mixer/select-none"/>
  </Press>
 </Bindings>