Today while I was practicing the piano, I wanted to search on the internet to understand the purpose of the left pedal, and after doing some research, I discovered that it should move each hammer to strike only one string instead of striking those it normally hits. Instead, my pedal moves the hammers closer to the strings, and at this point, I wonder if this movement is correct and therefore varies from piano to piano, or if it is a malfunction of my pedal. I would like to specify that mine is a Yamaha Hamamatsu 2356011 upright piano
Absolutely not. The "una corda" (una corda) pedal concerns the grand piano. With the left pedal, the mechanism shifts to the right and the hammers exclude "one string."
In an upright piano, this is not possible. Therefore, a system (a bar) was invented that moves the hammers forward. This way, their stroke decreases, as does their force. The pianist feels a small gap, specifically for this purpose, before the hammer gains energy.
