Learn all about musical instruments!
Trumpet The trumpet is made out of metal. When you blow in it, it makes a sound, high and low. 10
Harmonica A harmonica is made of metal and it has a metal comb inside. There are 10 holes and when you blow in them, it makes a sound. When you blow on the 1 it makes a low sound and when you blow on the 10 it makes a high sound. The high sound hole is smaller and the low sound hole is bigger. 11