     $scope.seq.ticks = -1
     $scope.seq.beat = -1
     $scope.seq.semi = -1
-  Keyboard.register(115, $scope.reset)
+  Keyboard.register(83, $scope.reset)
 
   $scope.toggle = -> if $scope.heartbeat then $scope.off() else $scope.on()
   Keyboard.register(32, $scope.toggle)
-  Keyboard.register(80, $scope.toggle)
 
   $scope.on = ->
     return if $scope.heartbeat

    angular.forEach($scope.t.channels, (notes, inst) ->
      Sound.play(inst) if notes[$scope.seq.semi]
    )
  Keyboard.register(83, strike)
  $scope.seq =
    ticks: -1
    beat: -1

    recalculate()
    strike()
  retreat = ->
    if $scope.seq.ticks <= 0
      $scope.seq.ticks = $scope.t.len()
    $scope.seq.ticks -= 1
    recalculate()
    strike()
