The method used to classify instruments is by the way they produce four percussion families air strings sound( four, percussion, families, air, strings, sound ).

Depending on the way each instrument produces sound, we can classify them into different four percussion families air strings sound( four, percussion, families, air, strings, sound ).

In the orchestra, we can find four percussion families air strings sound( four, percussion, families, air, strings, sound ) families of instruments.

The violin sounds when we make its four percussion families air strings sund( four, percussion, families, air, strings, sund ) vibrate.

The woodwinds produce sound by blowing four percussion families air strings sound( four, percussion, families, air, strings, sound ) into them.

The drum, crash, timpani, belong to the four percussion famlies air strings sound( four, percussion, famlies, air, strings, sound ) family.