There are a lot of theories about the origin of the sitar. Unfortunately, most of which are historically inaccurate and, thus, impossible. The most common theory is that Amir Khusru invented the sitar around 1300 AD. This is a different Amir Khusru from the one stated above. The Amir Khusru of the 1300 AD was a popular personality and is an image for the Hindustani Sangeet. The comb material is said to have a slight influence on the harp s tone but the main lead of the comb material is durability. Traditional harmonicas were made of wood while modern versions of the instrument are made of plastic or metal. The reed plate is the collective name for reeds in one panel. Reeds could be made of steel, brass, plastic, or aluminum. There is a special tool designed to remove the mouthpiece safely. Maintenance Maintenance of the instrument is very important in preserving its integrity and quality of acoustic performance. Rinse the mouthpiece with a mouthpiece brush and lukewarm water every week and don t forget to bathe the instrument every month. When you put together these two instruments, it would resemble the diatonic button accordions which are still made in modern times. As time has passed, many keyboard and buttonboard systems were developed. Now, accordions have the ability to switch with ease between two voices and are constructed in various methods to increase durability and stability. It is regularly played by strumming with a pick similar to a guitar rather than plucking it like a harp. 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. Basics of playing The very first step of playing the mandolin is to learn how to tune it because you cannot produce the right melody without proper tuning. Use a strap or place it on your lap when playing. For beginners, it is suggested for you to use a pick or plectrum. Lightly hold it between your thumb and pointer with its pointed end facing the strings.