Using a delegate with the call-back method did indeed solve the problem.  I 
have filed a bug report about this one, because the documentation for -NSSound 
isPlaying is simply wrong: That method does not always return a valid answer 
under 10.7.4.  (And because it did work as documented under 10.6.8, I now have 
an app in the field that will break when users run it under Lion.  Apple 
changed functionality in a non-backward compatible manner without even 
documenting the new behavior.)


--  Jay Reynolds Freeman
---------------------
jay_reynolds_free...@mac.com
http://JayReynoldsFreeman.com (personal web site)


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