U+1D0CB "𝃋" Byzantine Musical Symbol Fthora I Yfesis Tetartimorion Unicode Character

U+1D0CB "𝃋" Byzantine Musical Symbol Fthora I Yfesis Tetartimorion is a notation mark from the Byzantine music system, specifically used to indicate a microtonal alteration of a musical pitch. This symbol represents a precise lowering or inflection known as a "fthora" combined with the interval of "yfesis tetartimorion," which adjusts the note downward by a quarter-tone or a similar small interval within the complex modal framework of Byzantine chant. The character is part of the Byzantine Musical Symbols block in Unicode, preserving the intricate notation used in Greek Orthodox liturgical music to convey subtle melodic and ornamental nuances.