I don't know if anyone here has seen these or not but I found a couple anime interpretations of SBS on morpheus. The first one was credited to Akira and the file size is 26MB (it stops 3:08 into the song). I think this one tried to follow the lyrical pattern of the song. For instance, whenever the line, "How long, how long must we sing this song" comes up we see someone preaching or demanding a call to arms. The second one is credited to Rurouni Kenshin and its 57MB big. This one is a bit more violent but its very powerful as well. From what I could tell its about a woman and her reluctance to fight. I enjoyed them both and I was very impressed with them.