Bagpipes mostly consist of one or more drones. It is a cylinder-shaped tube with usually a single reed. It has at least two parts and has a sliding joint or bridle which manipulates the pitch. Construction A constant air supply is provided by the bagpipe s construction. The air flow could be maintained in the chanter and drone pipes through using the left hand to squeeze the bag during breathing periods. During the Renaissance, it was at its peak and it was revived in modern times. It has an unusual bent shape because it resembles the letter J. There are some people with presumptions that this is so to direct the produced sound to the crumhorn player. Often, the crumhorn is wooden. It has a cylinder-shaped bore and a double reed which has a cap made of wood. In the early Europe, instrumentalists kept on altering the tuba designs and giving it a new name so not many were certain of what the tuba really was. It was hard for the people to find a tuba that was accurately constructed. This made the tuba much less famous in its young stages. Types of tubas The tuba with the lowest pitch is the contrabass tuba which is pitch in B flat or C. The two types of cover plates are those with the traditional open design and those with enclosed designs. Types Harmonicas are divided into three types. These are the chromatic, diatonic, and tremolo harmonicas. The chromatic harmonica produces semi-tones using a sliding bar. It is similarly designed with the piano which has the ability to play each tone in all octaves. Lyre The lyre is a stringed musical instrument which has been popular all around the world and is recognized for its prominence in classical antiquity. It has a yoke which includes a crossbar and two arms and has strings that stretch from the tailpiece to the crossbar. Some lyres are bowed while most of these are plucked. It is now preserved in Brussels, Belgium. Because it originated from Naples, the mandolins built centuries back are called Neapolitan mandolins. These have bodies which are almond-shaped and have bowled backs. Its soundtable which is curved provides greater string tension. It has a bridge which is a movable piece of ivory or hardwood placed in front of pins holding the strings.