If there was such a thing as a portable grand piano, this would be it’s compliment:

From the October 1937 issue of Popular Science:
“Six persons can play simultaneously on a gigantic accordion exhibited [around 1937] in Germany. Over six feet high, the mammoth musical instrument has a keyboard covering more than ten octaves. Casters [...]

A standard hand saw can be used to play music! By tweaking/bending the blade in an “S” shape, one can hit the “sweet spot” with a mallet or use a cello bow to make the saw “sing.” The sound produced is very ethereal sounding -like a woman’s high singing voice or a theramin. [...]