(tympana), trumpets and bells (koudounia or "chálkina" in the local vernacular). Other instruments used include violin, clarinet and Macedonian lyra. Thessaly Folk songs from Thessaly are mostly slow and stately, however the music accompanying the Syrtos dance, is typically livelier and more energetic than it is in other parts of Greece. Songs accompany dances such as the Kalamatianos (popular universally in Greece), Thessalikos, Galanogalani, Kangeli, Gaitanaki, Tsamikos, Sta Tria, Karagouna and Beratis. Thrace Instruments used in Ancient Thracian music include goatskin bagpipes (Gaida) and the Byzantine lyra. Folk dances include the Tapeinos Horos, Baidouska, Tromakton, Souflioutouda, Zonaradiko, Sousta, Tsestos, and Apadiasteite Sto Choro. Traditional Thracian dances are usually swift in tempo and are mostly circle dances in which the men dance at the front of the line. The Gaida, a goatskin bagpipe, is commonly used in Thracian music and clarinets are also used. The Thracian Gaida, also called Avlos, is different from the Macedonian or other Bulgarian bagpipes. It is more high in pitch than the Macedonian Gaida but less so than the Bulgarian gaida (or Dura). The Thracian Gaida is also still widely used throughout Thrace in northeastern Greece. Notable singers of Thracian music include Chronis Aidonidis and Kyriakos Sfetsas. Pontus Pontic music retains elements of the musical traditions of Byzantine music and the music from the region known as Caucasus. The primary instruments in Pontic music are a bowed instrument known as Kemençe of Laz or the Pontic Lyra, which originated in the Byzantine period and is similar to the Byzantine lyra and Cretan lyra. Other bowed musical instrument are also used, such as the Kit violin and Rebec, these are more popular in the Western region of Pontus. Other instruments include the drums, lute, Askomandoura (a type of bagpipe), Daouli (a type of drum) and Aulos (a wind instrument). Folk dances from Pontus include slower dances including the Omál, Tik and Dipát. Faster dances include the Tik Tónyia and Kotsari and other dances include Giouvarlantoum, Serra and Tas. Constantinople The main Greek dance, for which folk songs are used as an accompaniment in Constantinople is the Hasapikos. It originated in the Middle Ages as a military exercise with swords, adopted by the Byzantine military. During Byzantine times, the Hasapiko was called μακελλάρικος χορός (makellarikos horos). The songs were later danced by butchers in a social setting, and it was danced in both Turkey and Greece. The use