Key signature -. The flats and sharps at the beginning of each staff line indicating the key of music the piece is to be played. Klangfarbenmelodie -. The technique of altering the tone color of a single note or musical line by changing from one instrument to another in the middle of a note or line.
There are many diagnoses that do not have definitive tests used to determine them, or which can't be truly diagnosed until a patient has died (upon autopsy). In these cases, doctors must use combinations of symptoms, often vague symptoms, which can lead to a lack of diagnosis. The real medical problem may be highly unusual or not appropriate to the age of the patient. The doctor might not consider a diagnosis that is very rare, or very rare for that age of the patient.
Beyond F.A.S.T. â Other Symptoms You Should Know. 1  Sudden numbness or weakness of the leg. 2  Sudden confusion or trouble understanding. 3  Sudden trouble seeing in one or both eyes.  Sudden trouble walking, dizziness, loss of balance or 1  coordination. Sudden severe headache with no known cause.