The TD-30 has a feature called "Pedal Bend" that allows you to control the pitch of an instrument with the hihat pedal.
Here's how to access this feature in a Kit.
1. Choose a Kit to edit.
2. Press INST.
3. Press F3 (CTRL).
4. Press F2(PDL BEND).
5. Hit the pad that you'd like to control the pitch of with the Hihat pedal.
6. Turn the dial to select the desired bend value (-24- 0- +24). Note: A value of 24 above or below 0, is equal to two octaves.
Tip: If you don't want to control the pitch of an instrument, set its value to "0."
7. Repeat Steps 5 and 6 for any other pads in the Kit if desired.
8. Press EXIT when you're finished.