How many violins violas cellos basses in a orchestra?

You should quit. Unless you're the next Yo-Yo Ma, then maybe not. The key to elite college admissions is to do something spectacular, that makes people wonder how a teenager managed to pull that off. There's a great essay online about this; look up “failed simulation effect”.

Women were not allowed in Baroque orchestras. Ask students to speculate on the reasons for this rule.

An orchestra is a group of musicians with a variety of instruments, which usually includes the violin family. ... And philharmonic just means “music-loving” and is often used to differentiate between two orchestras in the same city (e.g. the Vienna Symphony Orchestra and the Vienna Philharmonic Orchestra).

In Europe and North America, some popular music acts also make use of the instrument. Additionally, the accordion is used in cajun, zydeco, jazz music and in both solo and orchestral performances of classical music.
...
Accordion.

Symphonic. In a symphony orchestra, the horn section is the group of symphonic musicians who play the French horn (or German horn or Vienna horn). These musicians are typically seated to the back of the ensemble and may be on either side at the director's discretion.

Three different kinds

This orchestra was a musical group comprised of Hogwarts School of Witchcraft and Wizardry students. They sometimes play by themselves, for public entertainment, and sometimes accompany the Frog Choir.

How is orchestrating different than composing? ... If the composer has written a divisi—something where, say, the violins play two different parts—the orchestrator will determine exactly how the music will be divided, whether it's simply between first and second violins or a more unusual arrangement.

Sections of an Orchestra The string section is the most important part of a symphony orchestra. It has more than half of the musicians and consists of violins, violas , cellos and string basses .

A symphony orchestra and a philharmonic are the same thing - sort of. They're the same size and they play the same kind of music. ... “Symphony orchestra” is a generic term, whereas “philharmonic orchestra” is always part of a proper name.

The orchestra was the primary performance space for the chorus in Greek theatre; also adapted for use as an arena for Roman "spectacle entertainment." The orchēstra was the space between the audience and the Greek skēnē or Roman scaenae; possibly rectilinear in Early Classical Greek theatre; circular in Classical Greek ...

Four groups

symphony, a lengthy form of musical composition for orchestra, normally consisting of several large sections, or movements, at least one of which usually employs sonata form (also called first-movement form).

Conductor, in music, a person who conducts an orchestra, chorus, opera company, ballet, or other musical group in the performance and interpretation of ensemble works.

When Benjamin Britten was asked to write a piece introducing children to the instruments of the orchestra, he thought that a theme and variations was the best way to do this. He composed The Young Person's Guide to the Orchestra (also known as Variations and Fugue on a Theme of Purcell) in 1945.

The brass family usually sits across the back of the orchestra. The HORN is in the back row of the orchestra, behind the bassoons and clarinets.

In modern times, the musicians are usually directed by a conductor, although early orchestras did not have one, giving this role instead to the concertmaster or the harpsichordist playing the continuo.

C trumpet
The C trumpet is most common in American orchestral playing, where it is used alongside the B♭ trumpet. Orchestral trumpet players are adept at transposing music at sight, frequently playing music written for the A, B♭, D, E♭, E, or F trumpet on the C trumpet or B♭ trumpet.

Modern orchestras are a bit smaller than in the Romantic Era (symphony and other very large orchestras still exist). Some may focus on the unique (or even bizarre) sounds of individual instruments.

String family
The harp is sometimes classified in the string family, however it is not shaped the same and it has about 45 strings stretched across its frame. The strings are plucked. There are seven pedals at the bottom of the harp that adjust the length of the strings to produce more pitches.

Also, the string section usually has the most notes and highest percentage of melody, so it would make sense to put them in front, where they are visible–both to the audience and to each other–and have the best chance of being heard. ... Absil, so for the most precise ensemble playing, the strings need to be in the front.

A smaller-sized orchestra (forty to fifty musicians or fewer) is called a chamber orchestra. A full-size orchestra (eighty to one hundred musicians or more) may be called a symphony orchestra.