One reed is sharper and one is a bit flat which creates the tremolo effect when vibrating together. Harmonica care Do not eat or drink while playing your harmonica and clean your mouth thoroughly before playing. Gently tap the harmonica every after playing to remove excess saliva and keep it in a box or case when not in use to avoid accumulation of dirt. A skilled castanet player has very swift movements with castanets which produce great rhythm counterpoint for dancing like the Flamenco dance or for accompanying other instruments. Structure A set of castanets looks similar to two small chestnut shells or clamshells. Actually, the term castanet is derived from the Spanish word castanuelas which means little chestnuts. This requires crumhorns to be at a fixed dynamic level when played and shortening notes implies crumhorn dynamics. The change in pitch of sound produced by the bagpipe while the player fills the bag is comparable to the variation in pitch caused by breathing changes. Crumhorn music is commonly played by a consort of crumhorns because of limited range. Modern Banjo There many variations of the modern banjo. Increasing its popularity is the six-string banjo which is played like a guitar. The modern banjo s body, sometimes referred to as pot, has a metal ring, circular wooden rim, and a stretched head. The head is made of animal hide but could also be made of synthetic materials nowadays. The reed is also very important because it is the part that vibrates and causes the production of sound. The clarinet itself comes in fourth. Construction of clarinets The clarinet is a closed cylindrical air passage which has an opening in the shape of a bell at one end. It has mouthpiece with a single reed which is made of cane. 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.