"The timpani, or kettledrums are always found in the orchestra. Timpani are often even found in the string orchestra. If you remember, Little Violin, that is a special kind of orchestra that ONLY has stringed instruments - except they frequently invite the timpani to join them."

"The timpani look like large copper bowls (or kettles) with drumheads. The player can actually change the pitches of the timpani by using a foot pedal. And felt-covered mallets are used to strike the heads of the timpani."

"The timpani are the only drums that are tuned to specific pitches. In fact, if you listen carefully, you will hear that the timpani helps, along with the double-bass, to strengthen the harmonic foundation of the music. If you remember your music theory, Little Violin, you will then understand why there are usually three timpani in the orchestra."

The little violin thought carefully for a moment and then said, "Oh, yes. I think I know why there are three timpani. Is that so they can play the three most important harmonic notes: the tonic, the subdominant, and the dominant?"

"A big cymbal crash for you!" said the piano. "You are absolutely correct!"