Have you used SPI in any of your other projects? If you take a look at the SPI general page, https://www.ghielectronics.com/docs/14/spi you need to know more about SPI than you have shared with us.
For a start, you need to understand SPI uses as a minimum 4 pins, a Chip Select pin (CS), and three “bus” pins, the CLK, MOSI, and MISO pins. The constructor example you show above uses PD8 as the CS pin, and the CLK/MOSI/MISO pins are from SPI1.
The press releases you link to http://jp.yamaha.com/news_release/2013/13102301.html do not appear to show how this chip would be connected, and as my Japanese skills are very weak I can’t see if that’s detailed in the release or the PDF from that site. We also don’t know whether you have this on an Arduino shield or if you have it on a board you’ve created. Ultimately you need to get the connections sorted out by knowing, not guessing, which pin on the Cerbuino is connected to the SPI port on the Yamaha chip - without that, anything else is likely to be shooting in the dark.
Do you know if there are English equivalents to the data sheet for this chip?