Question about midi mapping audio clips to midi clips

[chemicaltheory]

So this video below about midi mapping is very useful, but what about doing it in reverse? Using an audio clip on track 1 to trigger a midi clip on track 2. For example, I have an mp3 audio clip on track 1 that I then want to trigger a midi clip (let's say it calls a lighting program in another software) on track 2 the second I trigger the mp3 audio clip on track 1?

I thought about just using scenes but that doesnt work for a A/B deck set up like we have.

Muchas gracias.

[Gangsterish]

Why not just go the other way around? Trigger the MIDI clip first, and have that MIDI note trigger both the audio AND the lighting software.