regulate

To control or direct according to rule, principle, or law.

To adjust to a particular specification or requirement.

To adjust (a mechanism) for accurate and proper functioning.

To put or maintain in order.

To adjust by rule, method, or established mode; govern by or subject to certain rules or restrictions; direct.

To put or keep in good order: as, to regulate the disordered state of a nation or its finances; to regulate the digestion.

Specifically, in musical instruments with a keyboard, so to adjust the action that it shall be noiseless, prompt, and sensitive to the touch.

To adjust by rule, method, or established mode; to direct by rule or restriction; to subject to governing principles or laws.

To put in good order.

To adjust, or maintain, with respect to a desired rate, degree, or condition