The slowly circulating drones of “Gray Sky,” a free download by Ryonkt, supply 17 minutes of audio bliss. Layers of sound appear occasionally with some suddenness, only to be absorbed immediately into the cloud-like whole (MP3). Brief pulses surface above the bellows-like sine waves, but there’s never enough of a pattern to them to approximate or otherwise suggest a proper melodic structure; they’re more like accent marks than notes, mere glints on the sonic windshield. This is a beautiful track, far more detailed than might initially appear to be the case. It’s likewise more dynamic: there are moments when sounds quickly spiral off into the distance, and when swells of tone play with your ear drums. There is modulation down and up, and a quieting toward the end that provides a natural, soothing close. More info at the releasing netlabel, restingbell.net, and at myspace.com/ryonkt.