Police investigate musicians who don't play jazzy enough

After a visitor of the Jazz Sigüenza festival called the police and claimed it was medically inadvisable for him to hear the free jazz group Larry Ochs Sax and Drumming Core perform, some pistol-carrying Civil Guards showed up at the concert to investigate the allegations that Mr. Ochs was not playing jazzy enough.

The cops actually agreed with the sickened jazz purist (who wanted his money back) that he might have a case. Here's some evidence...