First m4l project - k1m controller

Hello.
I'm a bit new to m4l and i'm trying to build a controller for my kawai k1m. I know it isnt that easy for a first max project but i'm willing to try hard to do it.
I've been through some max editor to get the in and out of doing an editor/controller.
For an exemple. I've looked through a waldorf pulse editor and found how he did send some message with the help of a "MIDI Controller Assignments".
I know that the k1m is a bit older than the waldorf pulse v1 so it's probably using sysex ? I've looked through for some midi controller assignments on the yamaha tg33 too and couldnt find the data.
I know Katsuhiro Chiba done a patcher to get sysex from m4l to a midi device with his OpFour tx81z controller and i think i would have to do the same.
Anyone know where i can find the MIDI controller assignments of the k1m or tg33 because the manual isnt really clear to me. I've found some value but not related in the way they are presented to the one on the pulse v1 manual.

I'm going through all the basics right now so even if it's a bit too hard to start by i'm pretty sure i can force my way in this project.