The property of being tuneful.

A melody. / A song, or short musical composition. / (informal) The act of tuning or maintenance. / The state or condition of being correctly tuned. / (obsolete) Temper; frame of mind.

(UK, slang) Used to show appreciation or approval of a song.

To adjust (a musical instrument) so that it produces the correct pitches. / To adjust or modify (esp. a mechanical or electrical device) so that it functions optimally.

(literally) Fitting the melody of. / (idiomatic) Roughly; about; to the approximate sum or extent of.

To select a channel, station, etc., as on television or radio. / (idiomatic) To pay attention.

Having or producing a pleasing tune; melodic or melodious

The calibration of a musical instrument to a standard pitch. / (engineering) The adjustment of a system or circuit to secure optimum performance.

present participle of tune

(music) Having the correct musical pitch. / (figuratively, usually with "with") In an understanding relationship (with something or someone).