check settings in the YAM DTX brain

Notes corrspond to the pad when setting up instruments to the pads. Ie assiging a Kick , Cymbal and so forth.

Load up the program with your midi host running. Use the edit function in the DTX to change the NOTE type

C 3. D4 etc. Adjust the kick ( pad)  trigger note to match the sound of the drum piece you are going for.

You’ll see the notes when you edit any trigger. Each pad will correspond to the note as you play the kit piece. Ex:
when you hit the kick, and have the edit ( trigger edit) mode on teh DTX brain running, you’ll see NOTE selection.

Check the DTX manual for exact reference. Trigger editing chapter.