A psaltery is a stringed musical instrument that dates back to ancient times. It typically consists of a flat wooden soundboard with strings stretched across it, which are plucked to produce sound. The instrument can vary in size and shape, and it is often associated with folk music traditions in various cultures. Psalteries can be played solo or as part of an ensemble, and they are known for their sweet, resonant tones. They are related to other string instruments like the harp and zither, and have been used in religious and secular music throughout history, including in the music of the Middle Ages.