Connect midi keyboard to trigger audio/video from two playlists

Feona Jones's icon

I am trying to create a piece where audio and video are synchronized using two playlists (one for audio and one for video) that are triggered when a midi key is pressed. I need them to stop playing once the key is lifted. The more receptive and percussive I can make this patch the better.

Multidimensional Merge Ver. 8.maxpat
Max Patch
this is what I have so far

Source Audio's icon

Max Patch
Copy patch and select New From Clipboard in Max.

Feona Jones's icon

Thank you...is there a way to have the audio and video stop once the key is lifted?

Source Audio's icon

Did you run the patch ?
Lifting any key sends zero and stops both audio and video
What is the problem ?