The largest pianoes are composed of two separate keyboards each 6' 6'' long-- put together, they form a gigantic 13' keyboard, or a capable of being played indepenently.
Due to the massive stress of bearing such loads, quality has been the first priority in the design and manufacture of every Walking Piano(TM). The model currently displayed (see below) has been played by more than three million children in Mexico with no effects on its performance. Another, installed at the San Bernardine museum, has been played by more than 20 million visitors. Quality and lifespan our are first priorities-- installed in museums worldwide, Walking Pianos have passed the test of time and continous use. One of our models, installed at the Franklin Institue of Philadelphia, has been in use for the past ten years without any ill effects.