1, piano

Piano (Italian: pianoforte) is a keyboard instrument in Western classical music, the "king of musical instruments" known as. By 88 keys (52 white keys, 36 black keys) and metal strings soundboard composition. The Italian Bartolomeo Christofori (1655-1731) invented the piano in 1709.

The range of the piano ranges from A2 (27.5 Hz) to C5 (4,186 Hz), encompassing almost all the music in the musical system, and it is the instrument with the widest range except for the pipe organ. The piano is commonly used for solo, repertoire, accompaniment and other performances.

2, organ

Organ, relying on air pressure to make a set of free reed vibration and produce sound. Wind source from a pair of bipedal pedals manipulated by the drumming bellows, sound quality and pipe organ similar. There are tone pegs above the keyboard for changing tones, so that the tone can be adjusted at any time.

In 1810, the Parisian instrument maker G. J. Grenier made the earliest reed organ, the 1840s French instrument maker A. F. Durban improved the instrument itself, mainly by increasing the pegs, trying to make it have the range of expression that the organ has, in order to get a different timbre changes, and named organ, since then, in the family and can not afford to buy the organ of the church It was very prevalent in homes and churches that could not afford one.

3. Harp

The harp (English: Harp, Italian: Arpa, German: Harfe, Persian:) is a large plucked-string instrument. Harp is one of the world's oldest plucked string instruments, originated in ancient Persia (Iran), according to the Egyptian ancient map, this instrument appeared in the third and fourth millennia BC. It was shaped like a bow with strings.

Early harps had only strings arranged in a natural scale, and played in a limited number of keys. The modern harp, designed by French pianist S. Ellar in 1810, has forty-seven strings of different lengths and seven pedals that change the pitch of the strings to play in all keys.

4, violin

Violin, is a stringed instrument. Total **** has four strings. Relying on the strings and bow friction to make sound. Violin body (*** sound box) is about 35.5 centimeters long, by the curvature of the panel, back and side panels bonded together. Panel commonly used spruce production, soft texture; back and side panels with maple, mahogany, hard texture. The headstock and neck are made of whole maple, and the fingerboard is made of ebony.

The violin is widely spread throughout the world and is the most dominant instrument in the string section of modern orchestras. It occupies a very important position in instrumental music, and is the pillar of the modern symphony orchestra, as well as a solo instrument with difficult playing skills, and is known as one of the world's three major instruments together with the piano and classical guitar.

5, trumpet

The trumpet (English name: Trumpet), also known as the trumpet, is one of the brass instruments. In all brass instruments, the trumpet has the highest articulation and sound. The trumpet uses the treble clef notation. It is played with a fixed cantillation, i.e., a fixed soprano concept. In today's world, there are trumpets in Bb, D, Eb, E, F, G, A, soprano (an octave higher) Bb, and many other keys, which are based on playing the soprano in the first overtone column.

The trumpet we usually use is in the key of Bb. If the trumpet plays the same melody with a piano, an electric piano, or any other instrument in the key of C, the trumpet must be raised a major second, which is the key of the C instrument.