Unending Melody blooms almost 4 weeks - from late June to Mid-July in my zone 6 garden. However, it only gets about 10-12 blooms per scape and has two way branching that you can see in the picture. Which surprises me because the AHS listing says that it has 6-way branching and 41-45 buds.
Although it hasn't multiplied very fast, sometimes that is a blessing, but I have had UM since 2011, so in general it really hasn't performed very well. Maybe it's my soil conditions
With that said, I have not seen a bad bloom on UM. Each one seems to be unblemished. I also do not recall seeing rust on it.
