Virga (Musical Neume)

The image features a black, square-headed virga note centered on a horizontal four-line staff. The notehead is a filled square positioned on the third line from the top, with a vertical stem extending downwards. The lines are thin, black, and perfectly horizontal, set against a stark white background.

The virga is a foundational element of square notation used in Western plainchant (Gregorian chant) from the medieval period onwards, representing a single note that is typically higher in pitch than those surrounding it.