The rarest type is the cello banjo. It has the same range as the mandocello and cello and is tuned one octave lower than the tenor banjo. Four-string banjos can be for choral accompaniment and single string tune playing. These can also be for duo style which is a mixture of the rhythm chords and single string tremolo and for chord melody style. The left hand controls the 10 holes on the top joint while the right hand is used for the also 10 holes on the bottom joint. Covered with keys are two holes in the bell section. Some craftsmen still manufacture hand made oboes. The double reed is made of cane which is dried and aged from the south of France or Spain s east coast. There are two open ends which makes it an open cylinder. It has sixteen openings eleven are closed by seven fingers, one is closed by the left thumb, and four can be opened or blocked by arranged keys. Flute Categories The flute player blows directly across from the edge of the mouthpiece for most flutes. 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. Acoustic guitar qualities The acoustic guitar has eight basic qualities volume, balance, dynamic range, cutting power, tone, presence, sustain, and separation. Some guitars have a higher volume compared to others but it does not mean that these guitars produce better sound output. There are many other qualities to consider. There is a technique called meanding wherein the player pulls down the main string over the lower part of the curved frets of the sitar. With this, the musician could reach a seven semitone range of notes set to a microtone. The sitar in jazz music The fusion of Western jazz and Indian classical music stems back from the 1950 s to the 1960 s.