Yeah, most people don't know what it is, hence the pie chart I posted earlier. It's sometimes incorrectly called a "baritone". While it's technically a member of the tuba family, it plays in the same range as a trombone but has a very different sound from either one - "Euphonious" means "to have a pleasing sound" and it very much does.
In looking for a pic of me playing, I realized how many different places I've played it. Here's one with my dad, my wife, and my mother-in-law all joining in at a TubaChristmas event at Milwaukee's Mitchell Park Domes a while back:
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And with my wife and her whole family - We play in the Waukesha Area Symphonic Band, an award-winning community band:
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I did find some videos with the band and with my tuba quartet while I was looking for pictures... And then decided I'm not gonna post 'em unless someone actually wants to see them.
Wow, that's a nice collection! I also play a Miraphone, looks like you've got the Thurman 5050 edition? I've got a 1258. I flew to KSBN and visited Woodwind-Brasswind when they still had the retail store there and I played eighteen different horns, and that particular one just felt the best to me. I'm really glad I did that I did that - I went in thinking I wanted a Meinl-Weston but once I played it I discovered it looked a lot better than it sounded. Willson, Besson, Yamaha, played them all and just kept coming back to the Miraphone. I've had it for about 15 years now, still like it a lot.
I also see you've got an Edwards bone (made in Wisconsin, hooray). That's what my wife's primary axe is. Our collection isn't anywhere near as extensive as yours - The rest of our low brass is plastic - P-Bone (hers) and P-Bone Mini alto (mine). I'd very much like a good bass trombone, but alas, most of my investments in precious metals are in the form of 2024-T4 aluminum that's shaped like an airplane.