You can see how that strange bowed contraption has parts that look like parts of a Gramophone. It's mentioned in some of the video's comments in French, which I google-translated to English as follows.
Andrea Amati II is especially the founder of a dynasty of famous violin makers of Cremona which include the disciples (Guarneri, Stradivari, Bergonzi, ...) which will manufacture the "baroque violin" in its heyday. This model violin is not called "violin trumpet" but "violin flag" and more specifically the "Stroh Violin" named after its inventor who filed the patent in 1899.
III It is based on the new amplification system at the time of the Gramophone. The bridge is connected to a lever that transmits the vibrations to an aluminum membrane of the amplification chamber connected to a flag-shaped horn. The membrane is locked to the frame of violin by rubber pads. This type of violin had its heyday in jazz circles 1920-1930. It is no longer used today in the Romanian folk music.
Cool little instrument, and some good thought went into it. It did what it was supposed to, which was to be louder back before electric amplification was available. It would also have been better suited to factory manufacture, since it relied less on precisely tuned wooden plates and I doubt it had a soundpost that needed fussing with. For loud gigs and events like parades, it probably did well enough.
Some developments pan out, and some don't. Not really any funnier than the saxophone, which is a more successful development from the clarinet than the Stroh violin was from the violin.
The tone is unusual, but kinda neat in it's own way.
"This young wine may have a lot of tannins now, but in 5 or 10 years it is going to be spectacular, despite the fact that right now it tastes like crude oil. You know this is how it is supposed to taste at this stage of development." ~ Itzhak Perlman
Cool video @Ferret, really enjoyed the sound. And the pictures of all the others are neat too.
Your thread title made me laugh out loud, especially after I saw what it was.
That guitar the other guy was playing was nice also, and I noticed it doesn't have a sound hole. It must've fallen off during the accident.
"Music is what feelings sound like." ~ Author Unknown