What does Medical JIA stand for? Hop on to get the meaning of JIA. The Medical Acronym /Abbreviation/Slang JIA means Juvenile Idiopathic Arthritis. by AcronymAndSlang.com
Staff (music) In standard Western musical notation, the staff, or stave, [1] is a set of five horizontal lines and four spaces that each represent a different musical pitchâor, in the case of a percussion staff, different percussion instruments.
A musical-notation symbol at the beginning of a music staff, a clef indicates the pitch of the notes on the staff. Clefs were originally letters, identifying letter-named pitches, that were added to one or more of the staff's lines (thus providing a key to their identity).