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.
For instance, in America, these kinds of drums are referred to as the doumbek. They are widely used in E. Europe, N. Africa and a larger part of Asia. Good examples of these kinds of drums include the Bendir, Riq, Tamburine, Irish bodhran etc. These drums are mostly made of wood which forms almost a perfect circle.
1 hourglass drum. 2  idiophone â An idiophone is a musical instrument which creates sound by the instrument as a whole vibrating without the use of strings or membranes. 3  janggu â The janggu or janggo is a double-headed hourglass shaped drum which is the most widely used drum used in the traditional music of Korea.