tune

Definition (noun): a succession of notes forming a distinctive sequence

Example: she was humming an air from Beethoven

Definition (noun): the property of producing accurately a note of a given pitch

Example: he cannot sing in tune

Definition (noun): the property of producing accurately a note of a given pitch

Example: the clarinet was out of tune

Definition (noun): the adjustment of a radio receiver or other circuit to a required frequency

Definition (verb): adjust for (better) functioning

Example: tune the engine

Definition (verb): adjust the pitches of (musical instruments)

Example: My piano needs to be tuned