It normally is. The composers of the works determine which instruments and how many of each are going to required to perform their pieces.
It carries the melody in some passages, it is part of the woodwind ensemble, it blends extremely well with other woodwinds,and with the horns. Like all other permanant members of the symphony orchestra, it has earned it's place over several centuries, and is an important member of the orchestra.
The harp and guitar are both, sometimes used in the orchestra ( the harp more than the guitar ). The instrument known as the "harp-guitar" is a very rare hybrid instrument. Most of its repetoire is in solo pieces and chmber music. It is not a regular member of the symphony orchestra.
I don't now exactly when, but it first became a frequent member of the orchestra in Mozart's time.
Bassoon In some other orchestra's the Oboe is used for this purpose.
Because it wasn't invented until 1846. Adolph Sax, the inventor, hoped it would become a regular member of the symphony orchestra, and while many composers have written orchestral parts for it (Ravel, Prokofiev and others), it has not, as of yet, become and official member of the orchestra. However, in most other areas of music (bands, blues, jazz ensembles, and rock, especially early rock), it has become a mainstay.
2.200 - 2,500 euro per Month, for beginners after college education --> this is a good guess, is not a musician myself
bass clarinet
No, the bass clarinet is a member of the woodwind family.
Harry Carney has: Played Himself - Member, Cotton Club Orchestra in "Check and Double Check" in 1930. Played Harry in "Reveille with Beverly" in 1943. Played Himself - Clarinet in "Sophisticated Lady" in 1952. Played Himself - Clarinet in "Solitude" in 1952. Played Himself - Clarinet in "Mood Indigo" in 1952.
The Bass Clarinet should have the lowest pitch.. or if not the Bassoon
A person can become a member of an orchestra by auditioning. Once that person is accepted, they will practice and play shows with their orchestra all over town.
A sculptor A. Jennifer Orchard is a world class Canadian violinist, gradualte of the Curtis Institute and the Juilliard School. She was a member of the Lark String Quartet and is now a member of the Pittsburgh Symphony Orchestra. She has made many recordings with the Lark Quartet and with the Pittsburgh Piano Trio.