Musical InstrumentsA fairly old instrument still in use today is the theremin. It has a particular design that differentiates it from any other instrument on the market and is played much more differently than other instruments on the market today. The theremin is an electronic musical instrument that is played using electric fields. When it was first introduced, the company was shocked to see this instrument that could be played without even touching it. The theremin is tuned so that it has a range of three and a half octaves. The functioning of the theremin is based on the theory of beat frequencies. The instrument also has a particular appearance. Two antennas stick out on each side of the theremin. There is also a vertical antenna on the right that controls the tone. The closer the player's hand is, the higher the pitch will be. The further away the player's hand is, the lower the pitch will be. A horizontal loop antenna is located on the left and controls the volume. The closer the hand is, the louder the volume. The theremin was patented in 1928 by Leon Theremin. The theremin has not escaped its original status as an innovative instrument. Many people have heard the theremin, even though they may not recognize it. The theremin is often present in science fiction films, particularly classic ones. He's not as famous today, but he has appeared in recent films like Mars Attacks and Ed Wood. (History of the Theremin, Moog)The theremin was invented in 1921 by Leon Theremin. It is one of the most important musical instruments of the 20th century because it is the first electronic instrument. Leon Theremin first got the idea for the theremin when he was in high school. He noted that, depending on how close a person is to a Tesla with the...... middle of paper ......of the classical guitar, the Ud strings are generally lighter to play. Ancient ud had four courses for tuning systems. The second feature is the pegbox. To provide the necessary tension to prevent the pegs from slipping, the UD's pegbox is bent backwards at an angle of between forty-five and ninety degrees. The actual body of the ud resembles a watermelon: it has a slatted, bowl-shaped bottom, which differs significantly from the flat-bottomed guitar. The bowl shape of the ud allows the ud to resonate and have a much more complex tone. The fourth and final characteristic of the ud is the harmonic wells. The quantity of holes varies from one to three holes. The holes can be circular or oval and are decorated. The decorations are typically a rosette carved from bone or wood. The four distinctive characteristics help the ud deliver the sound and enjoyment it creates.