This is interesting, but unfortunately it isn't a correct analysis -- for it to be a real mobius strip it would need inversional symmetry, not symmetry in time -- the topology of this piece does not match that of a mobius strip (to visualize the topology of the music itself, you have to imagine it being written on a transparent strip). With an opaque strip, you can actually just write any music whatsoever -- this would have worked fine with no twists in the strip (and no music on the inside).
Canon 1 a 2 from J. S. Bach as a M?bius strip http://strangepaths.com/canon-1-a-2/2009/01/18/en/