Yamaha b3 upright pianoIntroducing the Yamaha b3 Upright Piano The b3 is the range topping model in the b Series, and while assembled in Yamaha's Indonesian factory it in fact shares many components with the Japanese built model U1. The design is based on that of the U1, including a solid spruce soundboard and 5 back posts but with an emphasis on balancing performance and value for money. At 121cm tall it offers longer strings and a larger soundboard area than the smaller