Best background music for a keynote presentation on nanotechnology?

I’m working on a presentation about nanotechnology. I really want to include some background audio, but I’m stuck on what kind of sound would actually work best.
I'm looking for something light and subtle—nothing too distracting—but something that still makes an impact!
Maybe some classical music could work?

Thanks!

PS. If anyone knows of a good website that gives a quick rundown on nanotechnology—like how it started, its potential, and where it's being used—please let me know.😁
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Don't bother adding music...😁, seriously, what's the point of having background tracks in a presentation?

Put that slide with the "spontaneous" applause at the very end 🤣

That’s my move, and I always get a standing ovation 😍🤣

Maybe throw some music in there, but keep it low—you know, just enough so those louder peaks hit occasionally. If you go too loud, even if it’s just barely above a whisper, it might end up pulling focus away from what you're actually trying to present 🙂