From the factory, the MIDI note numbers in the TD-50 are already pre-assigned to each of the pads. If desired, you can choose your own custom MIDI note number assignments. This can be convenient for MIDI sequencing or when triggering the sounds in an external MIDI module (i.e. computer). Here's how:
1. Choose a Kit to edit.
2. Press the F5 button (MENU).
3. Press the PAGE DOWN button repeatedly until page 4 ("KIT PAD MIDI") is shown.
4. Press F1 to confirm you're on the "NOTE" tab.
5. Hit the pad (head or rim) or use the cursor up and down buttons to select the pad that you want to change the MIDI Note number for.
6. Turn the dial to choose the desired note number.
7. Repeat Steps 5 and 6 for any remaining pads.
8. Press the KIT button when you're finished. The new settings are saved in the Kit automatically.