武満徹 - IN AN AUTUMN GARDEN
In An Autumn Garden is a composition by the legendary 武満徹 (Takemitzu Toru). this piece is one of the most stunning of his works. the music is primarily played upon a biwa, but other traditional japanese instruments join in.
the first track, "In An Autumn Garden" (which is apparently a gagaku piece), begins with a slow drum beat that sounds like the dripping of water in a forest, and then the humming of the string instruments glides in. this high pitched humming and whining continues for a while (it sounds like birds and crickets, to be honest), until it trails off about 3/4th of the way in, and it is met by a faster, building drum beat and a meditating biwa and shakuhachi.
the entire composition is breathtaking. i'm not sure if the version i present here is properly separated, but that shouldn't change your listening experience.