NOTE: this video has nothing to do with CBGs but I thought some folks would appreciate it.
For the next episode of Whistle Wednesdays I'm going to do something silly. I take a look at some inexpensive siren whistles and try to play multiple units at once. It's a fun exercise and it answers a question you probably weren't asking... can you make a Super Siren Whistle?
See more Whistle Wednesdays videos here: https://www.youtube.com/playlist?list=PLwIixlr7C6KX0H4RhqubfEEC4mXHnIJyQ