Depends on the piece, but in my music the violin is the melody while the bass, cello and viola are the harmony.
Depends on the musician, too. Ask the violinist this question and s/he will say the violin. Ask any other instrumental part and invariably they will claim "their part" is the most important one. Truth be known, collectively every musician, no matter what instrument or part they play, contributes equally to the end result, so, in effect, every section is the most important part.
string section
The bassoon typically sits in the second row of the woodwind section, which is behind the string section. Where the bassoons sit is ultimately a decision made by the conductor.
When an orchestra piece features a soloist that plays alone for the most part, the orchestra just sits and waits until they come in for their part of the song. Lots of times though, when there's a soloist, there are background parts to go on behind the solo music. These are when another instrument or section of music plays quieter, but it's to enhance the melody or add harmony to the soloist.
The Trans-Siberian Orchestra plays neo-classical music.
When everyone plays music together, it is normally called an orchestra.
The place where an orchestra plays - is called the orchestra pit
The bassoon typically sits in the second row of the woodwind section, which is behind the string section. Where the bassoons sit is ultimately a decision made by the conductor.
An orchestra plays music for entertainment/pleasure.
When an orchestra piece features a soloist that plays alone for the most part, the orchestra just sits and waits until they come in for their part of the song. Lots of times though, when there's a soloist, there are background parts to go on behind the solo music. These are when another instrument or section of music plays quieter, but it's to enhance the melody or add harmony to the soloist.
The Trans-Siberian Orchestra plays neo-classical music.
Pizzicato for the string instruments is achieved by the plucking of the strings.
When everyone plays music together, it is normally called an orchestra.
The leader of the orchestra - its a violin from the front desk.
The composer was Hans Zimmer but the actual orchestra remains unknown.
The place where an orchestra plays - is called the orchestra pit
The names "symphony orchestra" and "philharmonic orchestra" are synonymous regarding both size of band and quality of players and music-making. The name "sinfonia" would imply that an orchestra is smaller - probably using fewer string players but this is not always the case.
La Traviata by the Royal Philharmonic Orchestra
About anything it wants. There are "pops" orchestras that do mainly show tunes and the lighter classics. Other orchestra groups concentrate on specific composers. The Glenn Miller Orchestra plays music from the swing era. So, there is no one single type of music that the orchestra at large can't play at any given time.