Willard Huntington Wright was a critic who wrote mystery novels in the 1920s under the name of S.S. Van Dyne. I've read a couple and they are pretty badly written. Nonetheless, they were immensely popular, made into movies that typically starred William Powell and impelled Warner Brothers to hire him to write a series of short mysteries for Joe Henabery to direct after Burnet Hershey had punched up the script..
Like the other 11, this one concerns itself with Donald Meek, a doctor and criminologist, and John Hamilton, a police inspector, who receive a warning that a murder will take place at the symphony that evening. Police surround the hall. The murder takes place. Meek explains what happens. It's the short-story form of the mystery.
Everyone speaks loudly and clearly, as if the sound equipment has not been worked on since 1928, although the music sounds just fine. I suspect Henabery had not been directing much but musical and variety shorts, and didn't know to tell the actors to tone it down. The camerawork by Edwin DuPar is fine.