This is the first section of one of the koto pieces I have recently studied. My part was the second part, I could not find a recording of both parts played together, which is unfortunate because it is stunningly beautiful.
Here is the first page of music. Each measure is a "box." There are thirteen strings, each assigned a kanji character. The first ten are simple numbered one through ten. The last three strings are "toh, ee and kin." I am not sure why... The strings kanji are as follows from lowest to highest-ichi to kin.
My part, the second (which is what I am playing the video), is the part on the left. The music is read top to bottom, right to left. I have added further explanations of some of the notations in blue.
Since this piece is several pages long, I just recorded the first and last sections. Here is the ending:
There are also many, many ways to tune the koto. This piece has a more "major" sound to it whereas Sakura sounds "minor."
More to come!