In my shady past I was a classical music critic, composer/conductor (a brief yet undistinguished career smile , although Altec once told me my music didn't suck laugh ), computer magazine editor, and videogame designer.

At present, I develop/edit books on film and music technology for Apple, Inc. Stuff like these:

http://www.peachpit.com/store/product.aspx?isbn=0321303342
http://www.peachpit.com/store/product.aspx?isbn=0321502922
http://www.peachpit.com/store/product.aspx?isbn=0321502655