there are several ways in winch we make musical sound. one way is to hit an object. another way is to pull or scrape a string. a third way is to blow into a tube instruments. that we hit are called percussion instruments. drums are repercussion instrument. stringed instruments include violins and guitars. instrument that are made from a tube that we blow into are called wind instruments. these include anything from a flute to a tube. these ways of making music go back thousands of years. now there is a fourth way that is quite new. in recent years instrument have been made using neither percussion string nor wind. they are electronic and look like computers. the future may bring many changes in music and the ways we make music