Woodwinds (clarinet, oboe, bassoon, etc.) are different from piano in that they require wind (created by the player) to create a tone (using a reed or reeds to create the vibrations needed for sound). In addition to using different techniques to make the reeds vibrate in different ways, the player also changes the tone (creates the notes) by pressing and releasing (using their fingers) keys that are attached along the length of the instrument, or by covering up, then opening, various holes on the instrument. Saxophones are not considered woodwinds by some as they are made of brass. However, a saxophone is played very much in the same way as most woodwinds. Flutes and piccolos, though made of metal, are often thought of as part of the woodwind family.