message: testing lookAhead compared to currentTime instead of 'now'
diff: @@ -778,7 +778,7 @@ function(Test, Transport, Tone, Offline, TransportTime, Signal, BufferTest, Time
  var invoked = false;
  return Offline(function(Transport){
  Transport.on("start", function(time, offset){
  - expect(time - Transport.now()).to.be.within(0, 0.05);
  + expect(time - Transport.context.currentTime).to.be.gt(0);
  expect(offset).to.equal(0);
  invoked = true;
  });
  