My piano friends and I are having a discussion about the advantage of playing the Una Corda piano. Some think that seeing the hammers in motion is an advantage in producing a nice sound as it also adds a visual dimention. Maybe that is the reason we sometimes see people playing an upright acoustic piano with the front panel removed. Interesting.
I don’t know about una corda piano, but taking the front panel away from an upright piano is not – in my case – to see the hammers moving but to hear the overwhelming beauty and brightness of the sound that is mostly muted by the front panel.
I agree, Benjamin. The sound is very different when the front panel is removed. It is the same with a grand piano where there is a huge difference in the sound depending on the lid being fully open or completely closed. The quality of the sound of a piano adds considerably to my enjoyment of a piano performance.