tune, note, pitch

tune: 1. Music.

• a. A melody, especially a simple and easily remembered one.
  
• b. A song.
  
• c. Correct pitch.
  
• d. The state of being properly adjusted for pitch: a piano out of tune.
  
• e. Agreement in pitch: play in tune with the piano.
  
• f. Obsolete. A musical tone.
  

note: 6. Music.

• a. A tone of definite pitch.
  
• b. A symbol for such a tone, indicating pitch by its position on the staff and duration by its shape.
  
• c. A key of an instrument, such as a piano.
  

pitch:  8.

• a. Acoustics. The distinctive quality of a sound, dependent primarily on the frequency of the sound waves produced by its source.
  
• b. Music. The relative position of a tone within a range of musical sounds, as determined by this quality.
  
• c. Music. Any of various standards for this quality associating each tone with a particular frequency.
  

... Am-Heirtage