1. An organ always has two keyboards.

2. A cello has six strings.

3. The clarinet is considered a brass instrument.

4. The trombone is rarely used in jazz.

5. The accordion was invented in the 1800s.

6. Aerophones are instruments that use air to make sounds.

7. Talking drums can be heard from a long distance away.

8. Violin-family instruments are played with a bow.

9. The word "piano" is short for "pianoforte."

10. An acoustic instrument is an instrument that does not use electricity.