If the Click tempo value shows as "MIDI" in the TD-27's display and you're not able to adjust it, this is because the TD-27's Sync Mode is set to "EXTERNAL." Change it to "INTERNAL" with the following Steps and you'll be able to adjust the tempo value.
- Press the SYSTEM button.
- Cursor to highlight "MIDI," and then press ENTER.
- Press the function 3 (F3) button to access the "SYNC" tab.
- Turn the main dial counterclockwise to set the Sync Mode to "INTERNAL."
- Press EXIT when you're finished.
The new setting is saved automatically.