Uprights, e.g. (6)
I believe the answer is:
pianos
(Other definitions for pianos that I've seen before include "strides?" , "Hammer and strings instruments" , "Hammer-based instruments" , "Keyboard instruments" , "Stringed instruments" .)
I believe the answer is:
pianos
(Other definitions for pianos that I've seen before include "strides?" , "Hammer and strings instruments" , "Hammer-based instruments" , "Keyboard instruments" , "Stringed instruments" .)