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.
A standard Upright Piano Bench is generally 30 wide x 19 high and is used with all sizes of upright pianos from 36 high to 52 high.Some smaller Spinet pianos look nice with the 25 wide Piano/Keyboard Benches. standard Upright Piano Bench is generally 30 wide x 19 high and is used with all sizes of upright pianos from 36 high to 52 high.