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strings,woodwind,brass and precussion instruments
The total number of musicians in any orchestra totally depends upon the composer. It's the composer who spells out which instruments and how many of each are used in the performance of his/her pieces.
Ludwig van Beethoven was the musician who wrote the famous Ninth Symphony, also known as The Choral. Rather than use the term "artist" as it is used by musicians today, Beethoven was referred to as a composer. This particular symphony, Beethoven's final and properly called Symphony no 9 in D minor, is famous for scoring a choir as one of the "instruments".
An actual ocarina, im sure, piccolos and flutes.
Trumpet
There are four stringed instruments used: violin, viola, cell, and bass.
There are a number of instruments that can be used in observation. You could use a telescope or microscope for example.
It was his 9th Symphony that used a choir.
He wrote Symphony in C, Symphony in E-flat major, Symphony in Three Movements, and a work called Symphonies of Wind Instruments which is not in fact a symphony; of that work he said he used the title Symphonies in its original meaning of "sounding together." He also wrote Symphony of Psalms, which uses a full chorus singing the text of some of the Biblical psalms of David, in three movements.
instruments are made from cane but synthetic reeds are used by a small number of clarinetists
This is Mozart's most popular symphony among his 41 works of the genre. It is written for classical orchestra. The instruments: Flute, 2 oboes, 2 clarinets, 2 bassoons, 2 french horns and strings.
There are a number of instruments used in the study of astronomy. The telescope is best known, but instruments including satellites, radio waves and simple charts are all used in astronomy.