Sounds to me like Shambes has come up with what might well become the new "mother of all pick-up lines" at music related events of all kinds. I can see it now: lonely bohdran player encounters dejected tuba player in a starlit sylvan glen.
"Hi! You're gorgeous, but are you a lumper or a splitter?
"Well, here in the moonlight, I find you attractive as well, but I'm not familiar with your jargon and therefor don't really know how to answer your question."
"It's starlight."
"What? Oh! (looking toward the vault of the sky) Well, maybe it's a bit of both. It's nice, anyway."
"Oh, so your a lumper!"
"I'm a what?"
"A lumper."
"What's a lumper?
"That's someone who likes to bring things together."
(smiling sensuously) "Oh yes, I guess I am lumper. I do indeed like to bring beautiful things together. Especially on a beautiful night in a beautiful place like this. Say! What is that thing you have?"
"It's called a bohdran"
"Really? I've never heard that word for it before. What do you do with it"
"Well, some people just bang on it, but I think it's better if you stroke it with feeling. You know, the kinder gentler thing"
"Oh. Have you ever played a tuba?"
"Well, no, not exactly. How do you do it?"
"Well, it's a good idea to lick your lips first, then just blow it here."
"Oh! I see. You know, I bet we could make some beautiful music together. Wanna try?"
"Well, okay. How do you wanna do it?"
"Well, let's start with you stroking my thing and I'll blow your thing."
"Well, okay. But what's the next movement?" "Hmm, well, let's just see how this first part works, and then we cane improvise."
"Say, are you a folkie?"