violin
By numbers, second place goes to the violas.
writing
The instrument in an orchestra that has the highest pitch is the violin.
The violin is the smallest stringed instrument in an orchestra.
By numbers, it's the string section. A full-sized orchestra has around 60 string players
The clarinet.
Mozart composed in every form of the time, but he probably composed the most for the orchestra.
A Standard orchestra but with only one instrument of each instrument
a harp :)
Contrabassoon
The first chair violin was watched by other members of the orchestra for the keeping of the beat when a conductor was not present or could not be seen.
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.