Kettledrums, or Timpani, are orchestral percussion instrument, a type of drum. Kettledrums produced pitched sound. Kettledrums sound loud or muffled depending on shape of the bowls and surface of it, and the size of the bowls determines the height of the musical tone. Each individual drum typically has a range of a perfect fifth.
Kettledrums are typically struck with a special type of drum stick fittingly called a timpani stick or timpani mallet of different materials. For playing a timpanist executed timpani roll, or tremolo, or single strokes, which can be folded into complex rhythmic figures or melodic solo. Timpani roll (Tremolo) extends the duration of the sound as required and allowing increases or decreases in volume.
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