I've been touring around Taiwan with a american choir group and I came across a very interesting piano. For the past few concerts our pianist has been playing on top of the line (pianos in concert halls and colleges) Hamburg Steinways (model D's);but on the last concert we were greeted with a Yamaha C3. However, this piano's sound quality blew all of us aw,y and crushed all the other piano's. Every note was very clean, crisp, and full, and the bass of this piano was the very full and bright. So... i want to know that how often do you find this kind of sound quality in a yamaha, and what makes a piano's bass sound so nice?