U+1D0A4 "𝂤" Byzantine Musical Symbol Martyria Deyteros Ichos Unicode Character

U+1D0A4 "𝂤" Byzantine Musical Symbol Martyria Deyteros Ichos is a notation glyph used in Byzantine chant manuscripts to indicate a specific musical mode or tone, specifically the "Deyteros Ichos" or Second Mode. This "martyria" symbol functions as a modal signature, helping the singer identify the correct scale and melodic framework for the piece. It is part of the Byzantine Musical Symbols block in Unicode, which was added to support the digital representation of the ancient Eastern Christian musical tradition. The character’s presence in modern computing allows scholars and musicians to accurately preserve and reproduce the rich liturgical music of the Byzantine Rite.