So now stated disassembling the restoring grand piano, Yamaha No.25. Loosening all screws, removing lid and other parts, and removing all strings and tuning pins. This time I will analyze the piano strings design. In order to do this, I need to know the diameters of the strings. Measuring this is done with micrometer. The entire scale will be arranged so this information is needed for calculation.

It’s really fun to take pictures of pianos from various point of view, literally. The macro lens is very much attractive as well

オーバーホールするグランドピアノの分解作業が始まりました。弦設計を見直すため、巻線弦の太さを測定します。

Just before that, I did a customer’s piano action repair on this piano. This shop doesn’t have much space to work on several pianos at a time. It’s really fun, though.

分解作業前、このピアノは作業台となってました。場所がないので・・・。