KGT p. 76. Finally, a fourth type of instrument is one with strings, aHurDagh. Each string is a SIrgh, a word also used for any thread or filament. A SIrgh of the finest quality is made from a material secreted by insects, similar to the silk produced by silkworms. To produce music, one may either pluck (pang) or strum (yach, which also means "stroke" or "pet") the strings. The tone produced is varied by touching the string or strings at various points while plucking or strumming. The verb used for this, perhap stranslatable as "to finger," is the same as the one used for wind instruments:Heng. The word HurDagh refers to any of these stringed instruments, of which there are several different types, the most commonly found being the relatively small Suqghew. The midsize leSpal is fairly widely used, while the large tIngDagh is rarely heard except in conjunction with the performance of an opera.