Wagner has lovely moments but awful quarters of an hour.

Wagner is a composer who has beautiful moments but awful quarter hours.

One can't judge Wagner's opera Lohengrin after a first hearing, and I certainly don't intend to hear it a second time.

Wagner is a composer who has beautiful moments but awful quarter hours

Mr. Wagner has beautiful moments but bad quarters of an hour.

It was a good three quarters of an hour after before I could see it.