U+1D168 "𝅨" Musical Symbol Combining Tremolo-2 Unicode Character

U+1D168 "𝅨" Musical Symbol Combining Tremolo-2 is a combining diacritical mark used in musical notation to indicate a specific tremolo effect, namely the rapid repetition of a note or the rapid alternation between two notes, with the "2" in its name signifying that it represents a two stroke or double stroke tremolo, typically notated above or below the affected note to instruct the performer to sustain the note by dividing it into a series of smaller, equal note values, such as sixteenth notes in a tremolo pattern.