The psaltery is a string instrument from the Middle Ages. In a sense it is the forerunner of the violin. However on the psaltery the tone is not produced on a fingerboard. Instead each string is fixed on a certain tone. The advantage is that one can play clean-sounding melodies without much experience.
Generating sounds with a bow offers a special appeal: with this instrument you can teach the introduction to handling string instruments in a playful way. Simple techniques such as bowing, holding the bow and bow pressure can be learned easily with this instrument.