Percussion Instrument

Why don't you go to Tom Lee to purchase a Music Dictionary or Form 5 music textbook for answers. It's more clearer and you should keep one as reference too

According to one web site

Bongo (相睇呢度 http://en.wikipedia. org/wiki/Bongos)

Bongo drums are a percussion instrument often referred to more simply as bongos.

Made up of a set of two very small drums attached by a thick piece of wood, bongos are played while held between the knees. They are traditionally played by striking the heads with the fingers, although some contemporary classical compositions call for them to be played with sticks or brushes. The two drums are of different sizes, with the larger one being called the hembra (female) and the smaller one called the macho (Spanish for male). Modern bongos may be made of wood, metal, or composite materials and produce a high-pitched sound.



Conga (相: http://en.wikipedia. org/wiki/Conga)

The conga is a tall, narrow, single-headed Cuban drum of African origin, probably derived from the Congolese Makuta drums. Although ultimately derived from African drums made from hollowed logs, the Cuban conga is staved, like a barrel. These drums were probably made from salvaged barrels originally.

They were used both in Afro-Caribbean religious music and as the principal instrument in Rumba. Congas are now very common in Latin music, including salsa music, as well as many other forms of American popular music.

Modern congas have a staved wooden or fiberglass shell, and a screw-tensioned drumhead. They are usually played in sets of two to four with the fingers and palms of the hand. Typical congas stand approximately 75 cm from the bottom of the shell to the head.

The drums may be played while seated. Alternatively, the drums may be mounted on a rack or stand to permit the player to play while standing.



簡單 d 講呢, 兩樣都係一對鼓, 但係 Conga 大好多 (一定係放係度打), 而 Bongo 就細好多, 可以拎起黎打.
The cor anglais, or English horn, is a double reed woodwind musical
instrument in the oboe family.

Its pear-shaped bell gives it a somewhat more nasal, covered timbre than
that of the oboe.
Reeds used to play the cor anglais are similar to those used for an oboe,
comprising a piece of cane folded in two. Although the instrument itself is
longer, a cor anglais reed is shorter than that of an oboe reed, and also
slightly wider. Where the cane on an oboe reed is connected to a small metal
tube (the staple) partially covered in cork, there is no such cork on a cor
anglais reed, which fits metal against metal onto the bocal, in a manner not
dissimilar to the bassoon.

參考資料:
http://en.wikipedia. org/wiki/Cor_anglais