1. A succession of notes forming a distinctive sequence
   "she was humming a tune from Beethoven";
   - melody, air, strain, melodic line, line, melodic phrase
    
2. The property of producing accurately a note of a given pitch
   "he cannot sing in tune"; "the clarinet was out of tune"
    
3. The adjustment of a radio receiver or other circuit to a required frequency
   "He gave the radio a tune, giving a clearer signal"

1. Adjust the pitches of (musical instruments)
   "My piano needs to be tuned";
   - tune up
    
2. Adjust for (better) functioning
   "tune the engine";
   - tune up

Sounds like: tuna, tun

Derived forms: tuned, tunes, tuning

Type of: adjust, adjustment, alteration, correct, modification, music, pitch, set

Antonym: untune [rare]

Encyclopedia: Tune, Mike