The lowest tones that could be heard from these are in the range of 70 to 100 Hertz. Ceremonial presentations One of the most popular rituals in Arnhem Land is the Narra ritual. Its songs are commonly accompanied by large paired sticks that are slowly beaten. Due to the towering ceremonial status of the Narra rituals, some may believe that songs accompanied by the didgeridoo are younger that Narra songs. In these are the reed chambers which produce sound. The pallets are valves that control air passing through to the reeds. The pressing on the key raises the pallet which allows air to enter the reed chamber and air flow stops as the key is released. The bellows gives the main method of articulation and is the most dominant component of the accordion. The string is plucked by this and this turns so it does not make contact with the string downwards. History The harpsichord was invented in the Middle Ages. In Italy, harpsichord makers made lightweight versions with little string tension but the harpsichords were made with a heavier construction by the Ruckers family in the late 1500's. Also, the Greeks played the krotola in religious affairs but it is proven that castanets were also found in Italian, Latin, and Portuguese music among many others. Use of the Castanets Castanets are dominant in music for dances in the baroque period. These were score for dancing music by composers such as Jean-Baptiste Lully. This indicates that it requires extreme care because brass can easily be dented and leather deteriorates fast if in the wrong environment. Moisture tends to build up in the horn when playing the sax. This will make the leather pads rot and the brass to rust. Make sure that you remove as much moisture as you can every after playing. It produces sound by using tangents, small metal blades, to strike the strings. The name of clavichord derives from the Latin clavis which mean key and chorda which means string of a musical instrument. History In the early fourteenth century, the clavichord was believed to be invented. It was well-known in the 16th to the 18th century and was most popular in Scandinavia, the Iberian Peninsula, and other lands which use the German language.