Yeah, that's him. He's pretty well-known himself (do a search for Kevin Wimmer on allmusic.com); he was in the studio this weekend recording with Linda Ronstadt, who I got to meet yesterday (she was very sweet and humble and complimented my shirt). He also appeared in the Season 2 Finale of the HBO show Deadwood, no lines but there was a nice screen shot of him playing the fiddle. And yeah, he's a hulking giant... I'm 5'1", he's 6'4". Even in my very highest heels, the height difference is almost goofy. I usually don't even notice, but once in awhile I'll catch a glimpse of us in a mirror or store window and it's like... wow. I'm tiny.
So when I say I'm an "amateur" musician, maybe take it with a grain of salt, I'm just amateur compared to all of them; I feel like I do pretty well and I can hold my own in a jam session, but it's pretty freakin' humbling being around the Wimmers!
And yes, Harry still has his accent, but it's relatively soft... he doesn't sound like Ah-nold, but he's clearly Austrian.
I forgot to mention about how I played bass clarinet in middle school and early high school band. I was so bad that I mostly got relegated to triangle. I think not practicing (ever.) was part of the issue.