The only reason I didn't consider it music was the structural absence of any sound whatsoever. You guys may have changed my mind a little bit, and surely it can be called music when listened to or performed live, but in my opinion I just didn't think of this song as any sort of music.
From a purely compositional standpoint. But then again, it is divided into three parts, and I don't know how the writing process went down, so I don't know what I think.