The Yamaha official page, lack of accurate information and bad experience with fakes are the reasons causing western piano technicians doubt concerning the authenticity of the Taiwan made Yamaha pianos. This article will explain!
When a piano technician came and saw an unfamiliar serial number on a Yamaha piano, he or she might mistaken it as a fake. The truth is, it might be legit. There are Yamaha pianos made in Taiwan too, but the information is not easy to find and most of them are in Chinese.
Eterna upright pianos with a Yamaha action seems very strange to most piano technicians. This article tells this Japanese brand's history by consolidating pieces of information found all over the internet.
One reason for piano to go out of tune is rapid change of relative humidity.
