The clavichord flourished from the 1400 s to the 1800 s. It is rectangular with generally decorated and painted lid and casing. Its strings are stretched laterally from the tuning pins up to the hitch pins where there are dampers in the form of felt strips across the strings. In the past, it was simply used for practices and not for larger presentations because it did not produce sound that was loud enough. Based on Greek mythology, the lyre was made from a khelus or tortoise shell covered with horns of the antelope and animal skin by Hermes. It is also said to represent the Apollonian virtues which are equilibrium and moderation. Structure The lyre has a hollow body called sound-chest, resonator, or soundbox. In the centuries that passed, mandolins were developed to have frets and strings doubled to courses and a smaller lute called mandora emerged in the 4th century. Then, a petite gut-strung mandola called mandolino which had six strings grew in some areas in Italy. It was also referred to as a mandolin in Naples around 1735. There are some octavins that resemble the tarogato yet with a smaller taper. These have wooden bells and are straight rather than conical. It was created in C and B flat with a range of G?3 to G6. According to a piece of a writer known as Altenberg, there is a bass octavin which is an octave lower. Unfortunately, there is no such instrument that has been produced based on what we know. Playing the sitar The instrument should be placed between the player s right knee and left foot with the left leg under the former. This position allows the player s hands to move freely without holding the sitar s weight. The thumb is positioned on the fretboard s top while the string is being plucked using a mizraab or pick. The trombone in the 20th century In the fist half of the 20th century, the trombone remained popular and widely used in the orchestra through works of various prominent artists like Leonard Bernstein, William Walton, and Richard Strauss. Trombone gained a higher level of significance in chamber and solo music when new composers gave it outstanding parts in their works in the second half of the century.