1 Examples of viral infections include, mumps or hepatitis B. 2  Some autoimmune conditions-such as lupus, or Sjogren's syndrome. 3  Injury to the pancreas. 4  Idiopathic-about 15% of all cases of acute pancreatitis are termed idiopathic pancreatitis.
Large, heavy drums produce low-pitched sounds that often are used to drive the rhythm of different songs. The timpani and pitched bass drums found in marching bands and orchestras are among the most common types of oversize drum. The taiko -- literally meaning âbig fat drumâ -- is a large double-headed oversize drum used in traditional Japanese music.
Some hand drums, such as the African dunun (djun djun) and South Asian dholak, will have a two heads. The second head on a drum can serve as a resonance head on the underside that is usually tuned to a lower pitch than the top drum head. Most types of hand drums, however, make do with a single head.