However, this term is not commonly used in English. It's more likely you're thinking of music that falls into these categories:
* Odd Meter: This refers to music that is written in time signatures other than 4/4, such as 5/4, 7/8, or 11/8. These meters are often considered "odd" because they don't conform to the usual patterns of two, three, or four beats per measure.
* Avant-Garde: This describes music that is experimental, innovative, and often challenges traditional musical norms. This type of music might be considered "odd" by some listeners due to its unusual sounds, structures, or techniques.
* Dissonance: This refers to the use of notes that clash with each other, creating a sense of tension or unease. Dissonance is often used to create a sense of the "odd" or unsettling in music.
If you can provide more context about the music you're thinking of, I can give you a more specific answer.