So sad to hear of Ryuichi's passing. There was always this incredible magic between him and David - soul brothers in music. Have read some great tributes online. I thought the one linked-to below by Simon Reynolds is particularly good. I really liked a lot of his work with Alva Noto too, and Life Life on Async, with David reading a Tarkovsky poem is very special I think, as is David's recent 'Sweet Paulownia Wood'. It's really quite shocking and upsetting to see the passing of these great musicians whose work is part of the fabric of one's own life.
https://pitchfork.com/features/afterword/ryuichi-sakamotos-borderless-brilliance/