Well, its atonal, but there's a sense of melody and structure to it. I basically built a synthetic 7 tone scale (I thought about the Kilrathi physiology in doing this - how would thier hands hold an instrument, and what would they be able to do with it), and I'm using a lot of different metrical divisions in irregular meters to really make it asemetrical. There's a sense of rhythm - it sounds like some sort of very difficult, ritualistic tribal dance. I took a page out of Hindemith's book (I've become very fond of Hindemith as of late - its not atonal, the tonal center is just shifting very rapidly) and I'm using a lot of 4ths and 5ths. Along with that I'm using a lot of tritones and minor 3rds.
Don't think of what I'm doing right now as Schoenberg atonal, because its not. Think of it more like contemporary music with an irregular, non-constant meter and a synthetic scale.
Like I said, this is only one in many experiments, so there will probably be more stuff to come.