rastrum

The word rastrum is now used to refer to a device for drawing musical staff lines.

When the months are represented by agricultural activities, a man with a four-prong drag hoe (rastrum quadridens) can sometimes appear as November.

The word "raster" has its origins in the Latin rastrum (a rake), which is derived from radere (to scrape).

A rastrum (or raster) is a five-pointed writing implement used in music manuscripts to draw parallel staff lines when drawn horizontally across a blank piece of sheet music.

Rastrology, the study of the use of the rastrum, is a branch of music manuscript studies that uses information about the rastrum to help find the date and provenance of musical materials.

A Movitype screen consists of a matrix-or "raster" as the neuroscientists prefer to call it (from the Latin rastrum, a "rake"; think of the lines on a TV screen as "raked" across)-that is made up of an array of tiny light-sources.