Piano is a keyboard instrument in western classical music and has the reputation of "the king of musical instruments". It consists of 88 keys (52 white keys and 36 black keys) and a metal chord board. Italian Bartolomeo Christopher (1655- 173 1) invented the piano in 1709.

Piano range from A2(27.5 Hz) to? C5(4 186Hz) contains almost all the musical sounds in the musical sound system, and it is the instrument with the widest range except the organ. Piano is widely used in solo, ensemble and accompaniment performances.

2. Violin

The violin is a stringed instrument. There are four strings in all. Rub the string with a bow to make a sound. The piano body (resonance box) is about 35.5 cm long and consists of a curved panel, a back panel and a side panel.

Violin is widely spread all over the world and is the most important instrument in the string group of modern orchestras. It occupies a very important position in instrumental music, is the pillar of modern symphony orchestra, and is also a solo instrument with difficult playing skills. It is called the world's three major musical instruments together with piano and classical guitar.

3, saxophone

The saxophone was invented by Belgian adolphe sax (18 14- 1894) in 1840. Adolf was keen on making musical instruments and was good at playing clarinet and flute.

His initial idea was to design a bass instrument for the orchestra. Ophicleide is flexible and can adapt to outdoor performances. He combined the mouthpiece of the bass clarinet with that of Orphee Clyde, improved it, and named this new instrument after himself.

4.clarinet

Clarinet, also known as clarinet or clarinet, is also called clarinet in Taiwan Province Province (clarinet in English, clarinet in Italian, clarinet in Spanish, clarinet in French and clarinet in German), and is known as the "orator" in the orchestra and the dramatic soprano in woodwind instruments.

The treble zone is loud and clear; The alto is expressive, pure in timbre, clear and beautiful; The bass area is deep, rich and full, which is one of the most widely used instruments in the woodwind music family.

5. Cello

Cello, a western musical instrument, is an indispensable tenor or bass stringed instrument in an orchestra, belonging to the lower tenor instrument in the violin family. Cello is rich and full of timbre, cheerful, good at playing lyrical melody and expressing profound and complicated feelings, and also bears the bass part of harmony with the double bass, which is known as "Mrs. Music".

The most brilliant moment of the cello is the mission entrusted to it by the composer to express the melody like a song. The wonderful melody played by the whole cello group is enough to dwarf any other instrument in the symphony orchestra.