The psaltery of Ancient Greece (epigonion) is a harp-like instrument. The word psaltery derives from the Ancient Greek ψαλτήριον (psaltḗrion), “stringed instrument, psaltery, harp” and that from the verb ψάλλω (psállō), “to touch sharply, to pluck, pull, twitch” and in the case of the strings of musical instruments, “to play a stringed instrument with the fingers, and not with the plectrum.” The psaltery was originally made from wood, and relied on natural acoustics for sound production.

We used plectrum, but don’t tell anyone 😉