Two hundred fifty-sixth note

/tˈuː hˈʌndɹəd fˈɪftisˈɪksθ nˈəʊt/

/tˈuː hˈʌndɹəd fˈɪftisˈɪksθ nˈoʊt/

a musical notation representing an extremely short duration of time, typically used in very fast-paced music