Tone Matrix the Tenori-on Wannabe

I've been into music a lot lately.  And I found a little flash program that is just awesome.  It operates very much like the Tenori-on: https://lab.andre-michelle.com/tonematrix.  As far as I can tell, the operating principle is such that each square is basically a different LTI system(with very small alterations to the frequency response) and lightning one up allows the program to feed it an impulse function.  Then all the impulse response enabled in a particular column is summed up and transformed into a time-___domain based signal and added to the currently playing signal.  Anyway, ultra cool program.  Check it out.