Is there a mechanism to remove listeners?

[diegodorado]

[kylestetz]

Good point: not really! To clarify, are you looking to remove up/down listeners that you've previously added, or the DOM event listeners as well?

If you're in a pinch and you want to remove an up/down handler, you can safely remove it from the AudioKeys._listeners.down or AudioKeys._listeners.up array. So for example (haven't tested this out but hopefully you get the idea):

// setup
var keyboard = new AudioKeys();
keyboard.down(downHandler);

// when you want to remove it
keyboard._listeners.down.splice(
  keyboard._listeners.down.indexOf(downHandler),
  1
);

Methods for removing handlers would be a nice addition (I'll happily accept PRs); something like removeUp and removeDown that does this internally.

If on the other hand you want to remove the DOM events (and teardown the whole module), we'd have to add a method.