A saxophone is a musical instrument that is made of brass and often just called a "sax". Due to the fact it is made from brass it is often involved in what is referred to as a brass section alongside true brass instruments like the trumpet or trombone. However, it is not a true brass instrument but a member of the woodwind family of instruments because it has a reed. It was developed from the clarinet and shares many similarities to the clarinet. The player blows into a reed fitted into the mouthpiece of the instrument.