I happened upon the music of Japanese ambient composer Tetsu Inoue in the mid-1990s, and it was love at first listen. Though his works have always been difficult to procure outside of his native land, finding the has always ensured that they are treated like the rare jewels they are. This selection, the title track of his 1994 debut album, is as good a place to start. as said record is rightly considered a masterpiece.
It is worth noting that Tetsu Inoue has been reported missing since 2007, having vanished without a trace. Read more about his disappearance here, in a post written by his longtime friend and webmaster.