1. Woodwind 2. Brass 3. Strings 4. Percussion/Keyboard

 Flute  Clarinet  Saxophone  Oboe and Bassoon

 Trumpet  Horn  Trombone  Euphonium  Tuba

 Guitar (Acoustic and Electric)  Violin  Viola  Cello  Double Bass

 Yes. The instrument uses strings to play the notes as in acoustic guitars and other stringed instruments.

 Keyboard/Piano  Marimba  Xylophone  Chimes  Snare Drum  Bass Drum

 Yes. The keyboard and piano are considered a part of the percussion family because the notes are struck with your fingers.

 They get their own category. They’re special.