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.
Bass drums can have a variety of strikers depending on the music: 1  A single heavy felt covered mallet (Fr. 2  When the drum is mounted vertically, the mallet above may be held in one hand and a rute held in the other. 3  2 matching bass drum mallets or a double headed mallet are used for playing drum rolls. When used as part of a drum kit, a variation of the mallet described above is mounted on a pedal and called a beater.