When I started this project about a month ago, I was using serial communication to communicate between the Arduino and Processing.  I did this because I wanted to be able to use tone() and stuff like that in the Arduino code.  Performance was not good the way it was set up, and so I rewrote the Processing sketch to use the Arduino library instead.  Everything is very quick, but I still need to use the speaker.  Does anyone know how to do something like arduino.tone(speaker2, 600); or something like that?  That would be great.  On the page that talks about the Arduino library it looks like that is out of the question, but I can't figure out a work around.  Any help appreciated greatly.