Torculus Neume

The image shows a black musical symbol, the torculus, set against a background of four horizontal black staff lines. The neume consists of three square notes connected by vertical stems; the first note is on the lowest line, the central note ascends to the next line above, and the third note descends back to the starting line. The visual style is that of standardized medieval chant notation on a staff.

The torculus represents a specific melodic gesture in medieval plainchant, consisting of a low-high-low pitch interval. It is a fundamental component of neumatic notation used to record the liturgy of the Western Church.