You describe the excellence of a trained ear or a born talent or the
combination.  In action, the phenomenon is arresting.  I had a colleague, a
surgeon from India.  She tuned my clavichord one day and did it very well
just by playing and adjusting to her ear each  note.  I asked how she
learned,  "As a child you were told to sing a note.  If the note was wrong,
you were hit. "
 
BW.