FabFilter

Is there any chance to make Timeless like this way:
I want to make a nice long dub delay and then when i hit other note i want to previos delay to be muted, like i want to have delay just for one note.
thanks

use sidechain triggered by midi note to automate feedback downwards?

i.e. send midi notes to timeless on seperate track, and then use an envlope to negatively modulate feedback.