Causes. In ALS, the nerve cells that control the movement of your muscles gradually die, so your muscles progressively weaken and begin to waste away. ALS is inherited in 5 to 10 percent of cases. The other cases appear to occur randomly.
1 The smaller studio uprights usually weigh between 400 and 600 pounds. 2  The monstrous full vertical or large upright piano can weigh as much as half a ton.  A studio piano's center of gravity is also lower than a large upright's, as it is about 4 feet (1.2 m) tall as opposed to a large upright's roughly 5-foot height.
Vertical pianos all have similar lengths and widths, so the main difference between the models is the height. Although the dimensions vary slightly from instrument to instrument, most vertical pianos are about 5 feet wide and 2 to 2 1/2 feet deep.Allot a 5-foot-by-5-foot floor space for a vertical piano and its bench.ave. The term upright piano refers to a particular type of instrument -- the tallest type of vertical piano, at least 47 inches high and sometimes as tall as 60 inches. People today often use the term to refer to any sort of piano that isn't a grand; these come in a range of sizes and are called vertical pianos..