Dyschezia and Hematochezia in Cats. Dyschezia is a condition in which defecation is extremely difficult or painful, and hematochezia is symptomized by bright red blood in the stool. Both conditions are visible symptoms of an underlying disease that causes inflammation or irritation of the rectum or anus. Hematochezia can also be concurrent with diseases of the colon.
Introduction to Upright Pianos. The first square shaped piano was invented by Frederici of Gera, followed shortly by Johannes Zumpe. In the nineteenth century, John Isaac Hawkins of Philadelphia developed the upright piano and the iron frame. This frame could hold the tension of thicker strings, giving the piano a bigger, richer sound. Upright pianos come in many sizes. The Spinet Piano was first produced around 1935.
The piano got its start as a modification of the harpsichord, which had 60 keys. The first pianos, therefore, usually had 60 keys. 60 keys represented five octaves, since there are 12 notes in an octave. As more and more pianos were made, composers began to write more music for the piano. It wasn't long before their compositions took them beyond the five octaves available on pianos at that time.