Definition
A quarter-tone is a musical interval measuring half a semitone, refining the scale beyond typical Western notes. Think of dividing a piano key's sound in half, creating a new, subtle pitch. These tones add unique flavors to melodies, frequently used in global music. They're not always easy for Western ears to grasp initially. Some musicians use them to express deep emotions. It's like adding an extra layer of detail to a painting, bringing out hidden textures.