Arduino to Max

Hi,

I'm trying to recreate this: - YouTube

I have the capacitive sensors set up fine and using Ardunio2Max I can get the signals into Max, but can't figure out how to turn this into sound.

In the comments of that video, the creator said "The signal coming from the arduino is processed with Max/MSP to create midi notes sent to ableton live to play any sound you like.". I was wondering if anyone can offer me some guidance of where to start with this? I'm not sure how to create midi notes in Max, let alone send them to Ableton Live

Thank you.