Notification at the end of builds

I do quite a few OpenEmbedded project builds during the course of a week.  This process usually takes 3-5 minutes.  That is just enough time to get distracted doing something else and forget about the build until an hour later when you realize — oops, I was supposed to send out a release email once the build was finished and uploaded.  It occured to me that it would be nice if my computer played a distinct sound at the end of the build.  With Linux this is incredibly easy:

• wget http://upload.wikimedia.org/wikipedia/commons/7/76/Ding_Dong_Bell.ogg
• sudo mv Ding_Dong_Bell.ogg /usr/local/
• sudo aptitude install cplay
• sudo echo “cplay /usr/local/Ding_Dong_Bell.ogg” > /usr/local/bin/bell
• sudo chmod 775 /usr/local/bin/bell

Now, when I have a long build, I simply do something like:

bitbake my-image; bell

There is probably something better than cplay that does not start a UI — any suggestions?