Ah. This one.
This was a good one. Though I believe those that read this should watch the anime instead.
Music is a big part of this story, and you can't hear anything from a manga obviously.
I'm really pleased that a scanlation group has picked this up. I started reading it years ago, and hoped that it would continue to be brought to us monolingual fans. It has happened and I am beyond pleased. Now if only Tomehane! and Sora no Manimani would be picked up by someone.
for me sora no woto was kind of dissapointing(the anime). I was more interested in the "what happened in the ancient war", the OOparts, the lost tech and all that, but instead what i got was essentially one big side-story