Right before a performance, they tune their instruments. Usually the concertmaster (1st Chair Violinist) plays A-440, and then a oboist plays the note and the rest of the orchestra tunes to that instrument. The Oboe is used because its sound is unique and can be heard better than the violin tone.
A-440 (concert A) is sometimes varied a couple cents sharp by some conductors, which is their prerogative to do so. Some go as high as A-446, which produces a much brighter sound.
Violins perform in most orchestras
The orchestra puts the drama in the Greek Theatre.
Disney Concert Hall
larger then usual
conductor
The conductor's job is to get the orchestra to perform the music at hand to the best of their ability, and in accordance with a certain view of the music that he/she has. In performance they do this with gestures, indicating the desired tempi (speed), dynamics (volume), and phrasing. But before performances, they often make adjustments to the music, work with the orchestra to develop a unique sound, and relay their artistic ideas to the orchestra members (to get them on the same page, so to speak). In fact, it could be said that the majority of a conductor's work occurs before we see them in performance.
Trans Siberian Orchestra plays orchestral music, though it does bend the definition of "orchestral" to include elements of the rock genre.
The Atlanta Symphony Orchestra based out of Atlanta, GA was founded in 1945. The professional orchestra performs over 300 concerts annually with a budget of 50 million USD.
Yes, there is a Duke Ellington memorial band that still performs. And The Smithsonian Jazz Orchestra also performs mainly Ellington music.
The word "orchestra" is a noun. It refers to a group of musicians who play together, typically in a concert setting, and can also denote the area in a theater where the musicians perform.
Because the music is just that good.
Unfortunately the question is not clear. The keyword is Kitchen color trends. but the question then talks about a compositional development hinged on an orchestra.