The hammered dulcimer (also called the hammer dulcimer, dulcimer, or tympanon) is a percussion-stringed instrument which consists of strings typically stretched over a trapezoidal resonant sound board. The hammered dulcimer is set before the musician, who in more traditional styles may sit cross-legged on the floor, or in a more modern style may stand or sit at a wooden support with legs. The player holds a small spoon-shaped mallet hammer in each hand to strike the strings (see Appalachian dulcimer). The Graeco-Roman "dulcimer" ("sweet song") derives from the Latin "dulcis" (sweet) and the Greek "melos" (song). The dulcimer, in which the strings are beaten with small hammers, originated from the psaltery, in which the strings are plucked.