Woodwind and brass instruments are two main families of musical instruments in the orchestra. Woodwinds, like the flute, clarinet, and saxophone, produce sound when air is blown through them, often using reeds or a mouthpiece. They are known for their expressive tones and can play both soft and loud music. Brass instruments, such as the trumpet, trombone, and tuba, create sound through the vibration of the player's lips in a mouthpiece. These instruments are typically made of metal and are known for their bright, powerful sound. Together, woodwinds and brass add richness and variety to orchestral music.