"Dimotika tragoudia" are accompanied by clarinets, tambourines, laouto, violins and lyras, and include dance music like syrtó, kalamatianó, tsámiko and hasaposérviko, as well as vocal music like kléftiko. The lyrics are based on dimotiki (folk) poetry (usually by anonymous lyricist) and popular themes are love, marriage, humor, death, nature, water, sea, religious, about klephts, armatoloi, various war fighters or battles etc. Some notable istrumentalists include clarinet virtuosos like Petroloukas Chalkias, Giorgos Gevgelis and Yiannis Vassilopoulos, as well as laouto and fiddle players like Nikos Saragoudas, Vasilis Kostas and Giorgos Koros.