Adjusting pitch finely
If you would like to change Capo's pitch adjustment on a finer increment than the semitone scale, there are two ways you can go about this.
A: Using your mouse
By holding the shift key, you can disable Capo's semitone locking while dragging the mouse.
B: Using the keyboard
For the finest pitch adjustment, you can hold the shift and command keys while pressing the up/down arrows to modify the pitch by 2 cents at a time.