Apparently not simple enough for me. I double clicked on the play command which put me into the command editor. I found the command you referenced and changed it to read "SongTitle Like '{1}' order by Rating Desc" I then saved and exited and restarted Vox. What I got was a WARNING errors during build and now I have no media monkey commands at all in the command tree.
sorry this post is not making much sense to me. First of all you click "Edit" to go into the command editor. I don't know what you mean by double click play.
saying "I found the command you referenced" leaves too much room for error. Maybe I referenced the wrong command, maybe you misunderstood and actually editing something else. What command did you edit? It sounds like you edited the "play" command, but that doesn't make sense to me.
saying that you "got errors" doesn't help much. what error, where? what was the error?
When you say "no media monkey commands at all in the command tree", is that what you actually mean? If you click "edit" to go to the command tree, are all your groups there, except all the mediamonkey groups? This seems very close to impossible to me.
Is VC accepting and performing other voice commands?
what version of VC are you using?
do you have a backup you can restore?
http://www.chiark.greenend.org.uk/~sgtatham/bugs.htmlprobably the only way I can maybe figure out what is going on is if you send me a zip of your whole VC folder.