I've been listening to a lot of Sakamoto Ryuichi recently. He's an astonishingly productive musician of consistently good work, and for those of you who only know his soundtrack work (Merry Christmas Mr Lawrence, The Last Emperor, The Sheltering Sky etc.) or Yellow Magic Orchestra, be prepared to discover almost 100 albums from the late 70s until now. He's like a Japanese Brian Eno. His recent ambient collaborations with Alva Noto and Christian Fennesz are really wonderful, and his last solo album, async is on the more challenging side, but he's produced all kinds of things from experimental through electronica to straight-up pop. For the uninitiated I'd start with 1990's Beauty.