I can remember the days when Yamaha was a motor vehicle company, churning out thousands of Japanese cars per annum, in that sudden amazing splurge of industry that occurred in Japan in the fifties/sixties.
The first Yamaha piano I came across was in Queenstown. I was touring with the NZ Opera Company in one of their piano tours (a very much cut-down version of La Boheme, for half a dozen principals and no chorus) and came across this baby grand at the venue we were using. It looked marvellous; it wasn't anything like it looked, and for some years afterwards I thought that Yamaha pianos were likely to be rubbish, as this one seemed to be.
However, there came a time when Yamaha got things right, and their pianos came within cooee of being as good as the famous old European names, like Steinway, even though the way the pianos were made was entirely different.
Afterwards, Yamaha turned to electronic keyboards and all sorts of other electronic musical devices, (such as the Yamaha emx5014c case for their stereo mixers). Now they're a brand name trusted in all sorts of circles, as you can see from these videos.