I havent used either of those products before. I am actually not fond of either maker, however, before you spend alot *of time searching, maker sure that the ART controller is a FULL midi and not a dedicated midi. ART is super known for
midi foot boards that will only operate their stuff, like the Digitech controll one is only for a few of their products.
If you know for sure that its a true midi board, you will need to map the midi to speak to each other. I cant tell you how as i dont know these products. a manual would be needed.
But for starters, map your alesis to control 1 and see if that works....