Not in the correct musical pitch. / (figuratively) Not in agreement or in harmony (with something).

(idiomatic, transitive, intransitive) To stop paying attention to; to ignore; to zone out. / To change the channel or frequency away from.

(idiomatic) To produce music, especially to sing, with accurate relative pitch.

plural of tuning fork

(colloquial, humorous) Loony, crazy, insane person.

(colloquial, humorous) Loony, crazy, insane.

(transitive) To make small adjustments to (something) until it is optimal.

(transitive) To make adjustments (to an engine or bicycle drivetrain) in order to improve its performance. / (intransitive) To make preparations for vigorous exercise; to warm up.

A series of adjustments to an engine in order to improve its performance / A series of preparations for vigorous exercise; a warm-up

(music, broadcasting) The tune that opens and/or closes a radio or television programme.