Thank you ccstone for the info. I thought I'd ask.
And just to clarify, I'm asking for when a (sound) trigger being played, then activate the following actions/macro NOT a Mac utility that can trigger a specific sound.
KM macro can be triggered by hotkeys, application, audio output change, clipboard trigger, folder trigger, gesture trigger, midi trigger, time of day trigger, wireless network trigger and many other triggers.
So I thought I'd ask with all those triggers available...hey why not a specific sound like the System Sound Effect can be a trigger as well?
Because it is not available on the drop down menu of trigger, who knows someone knows of a script that can recognise that sound effect (eg Basso) as a trigger.
That's what I am looking for... if available/possible
For example: if a user is doing certain activities on the Mac (say Keyboard Maestro) and perhaps the focus of the window prevent the user to click/type anywhere else, or when pressing the "ESC" key to go back or escape a certain window, the System Sound Effects by default would play Basso as an alert that particular action isn't available. I am looking to use that Basso alert sound as a trigger. I hope that clarifies it.