Microtonal music or microtonality is the use in music of microtones—intervals smaller than a semitone, also called "microintervals". It may also be extended to include any music using intervals not found in the customary Western tuning of twelve equal intervals per octave.

What is the meaning of microtone in music?

: a musical interval smaller than a halftone.

Can you hear microtones?

Beyond these daily microtonal sounds, we hear microtones in our music all the time. ... These microtonal bends make the music come alive. Musicians often turn to microtones when they want a certain effect, for example, the “honky tonk” piano sound, which can be found in the Beatles' “Rocky Raccoon” among other places.