Technically speaking, it's not hard to conduct. The technique for a basic four-four pattern can be taught in maybe 15 minutes. After that's it's whatever nuance you want to add to your motions to express nonverbally what you want the group to do.
Brass family
Conductor: The leader of the orchestra, who provides the beat by moving his/her arms, usually with a baton in one hand, to keep all members of the orchestra together and ensure that players come in at the correct time.
The trumpet. One of the smallest brass instruments to play and one the highest-pitched brass instruments, the trumpet is the brass family's leader and plays most of the melodies. ... French horn. ... The trombone. ... The tuba.
In context, a chamber orchestra refers to an orchestra (a group of musicians) who play in rooms rather than full-sized concert halls. The acoustic limitations mean that chamber orchestras are smaller (up to 50 musicians) as opposed to a full orchestra (around 100).
A symphony orchestra will usually have over eighty musicians on its roster, in some cases over a hundred, but the actual number of musicians employed in a particular performance may vary according to the work being played and the size of the venue.
The goal with an orchestra is to balance the volume of the different sections to create the ideal sound. More violins creates a more lush sound, and a better balance with the winds, brass and percussion.
Explanation: Because these instruments are needed in an Orchestral Performance. There are four groups Related Musical Instruments: the woodwinds, string, brass and percussion.
A Baroque orchestra is a large ensemble for mixed instruments that existed during the Baroque era of Western Classical music, commonly identified as 1600–1750. Baroque orchestras are typically much smaller, in terms of the number of performers, than their Romantic-era counterparts.
The conductor is a “front man” of sorts. Some people believe that for the whole orchestra to act as a single ensemble, it is essential to have a conductor, and not only that, but a competent one!
Shifting is the term used to describe the movement of your hand up and down the length of the fingerboard. It helps some beginners to think about their left hand as an elevator. First position is like the first floor of a building and your hand can travel up the fingerboard to the next floor.
String family
All of these were “symphonic orchestras” - meaning they had brass, woodwind, and percussion players in addition to the string section. No baritones or euphoniums.
It can be a chamber orchestra, which is a small orchestra of around 25 musicians, often playing strings and performing in, historically, palace chambers for royalty. A symphony orchestra is large, sometimes topping 100 members, and is organized to play symphonies (in concert halls).
There are a lot of variables, which is why no respectable contractor will list a fee on a website, but, in most larger cities in the US, for a reasonable, professional, "pickup" orchestra, figure $200ish per person for a 2-3 hour window.
Wind and percussion orchestra
Maurice Ravel