pure ambience
Since 4'33" is a silent work, the only role for a recording of it is to transport the listener to another place, to hear the ambiance there. I'll admit to not having listened to this whole recording. While I admire the idea behind the work, and have enjoyed some video versions, I wouldn't spend 2 cents on an MP3 download, much less 49. But this may well be a fine rendition.
