Each function is called with one argument, @var{sound}.
@end defun
-@defun play-sound-file file &optional volume device
+@deffn Command play-sound-file file &optional volume device
This function is an alternative interface to playing a sound @var{file}
specifying an optional @var{volume} and @var{device}.
-@end defun
+@end deffn
@defvar play-sound-functions
A list of functions to be called before playing a sound. Each function