Without a doubt....it is the tuba! It plays the lowest notes.
The tuba is the largest brass instrument with the largest mouthpiece. In marching the Sousaphone and the Contrabass bugle (known as contra) are marching versions of the tuba. The contra is the lowest-pitched, largest, and heaviest marching instrument.
EUPHONIUM
The tuba!
The horn belongs to the brass instrument category. It is typically made of brass and produces sound through the vibration of the player's lips against the mouthpiece. The horn is known for its distinct, rich tone and is commonly used in orchestras and brass ensembles.
The tuba is the biggest member of the brass family. It has a large, conical shape and produces deep, rich tones, making it a fundamental instrument in orchestras and concert bands. The tuba typically plays the bass line in musical compositions and comes in various sizes and keys, with the BB♭ and CC tubas being the most common. Its size and design contribute to its unique sound and role in ensemble settings.
The loudest instrument in the Brass Family is the Trumpet.According to them. ;)To be fair, the horns or the trombones can give them a run for their ego's and the scale of 'loud'.
The trombone is classified as: low brass, and or brass.
Woodwind, strings, percussion and brass are the traditional 4 sections of an orchestra and modern orchestras would include a fifth section of 'keyboards'.
The euphonium belongs to the brass family of musical instruments. It is a type of valved brass instrument, similar in appearance to a small tuba, and is known for its rich, warm tone. Euphoniums are commonly used in concert bands, brass bands, and orchestras.
The tuba is the biggest brass instrument used in a symphony orchestra. (There are some very rare special pieces of music where a composer might call for an instrument that is not normally in an orchestra. For example, there is a family of brass instruments called ophicleides that were used in the 1800's, and those came in many sizes, including ones as big as the tuba.)
euphonium - a brass instrument similar to that of a tuba.euphonium - a brass instrument similar to that of a tuba.euphonium - a brass instrument similar to that of a tuba.euphonium - a brass instrument similar to that of a tuba.euphonium - a brass instrument similar to that of a tuba.euphonium - a brass instrument similar to that of a tuba.
A musical instrument similar to a flute commonly used in orchestras is the piccolo.