PLAYWAVE "filename" [, mode ]

This plays a *.wav sound from a file on disk as specified in filename.  If mode is specified, it must be one of the modes described below:

sync	 (or synch)	- wait for the wave file to finish playing (the default)
async (or asynch) 	- don't wait for the wave file to finish playing
loop			- play the wave file over and over (cancel with: playwave "")

