Nice piece!
So, first off, I give you props for straying away from the piano/guitar and trying out something more experimental for a sorrow theme. Everything was technically done very well I think, however I didn't -personally- feel/hear an emotion of "sadness" so much as an epic tribute to a fallen warrior. It wasn't so much the bagpipes nor any of the instruments (I've personally heard some tear bringing bagpipe music), for me it was more the chord progression, felt more epic than sad really.
Other than my own emotions though, this was a very well made track! It sounds like you spent quite a lot of time on it and the lenght of it was perfect -- I've been hearing it over and over for about 3 minutes and still not tired of it.
So well done, 10/5d