Outside the box, under the chin

[OC Richard]

What's the significance of the word "emerald" in the band's name?

Sadly, the link doesn't work for me.

That's strange that Facebook doesn't work! That's their job, to have access for people.

Here's the Las Vegas Emerald Society Pipe Band's website https://lvemeraldsociety.org/

There's also the purely civilian Las Vegas Pipe Band https://www.lasvegaspipeband.org/

Emerald Societies are, I suppose, a fossil from the days when cities like New York, Boston, and Chicago had police forces and fire departments which were largely Irish.

https://en.wikipedia.org/wiki/Emerald_Society

As you may know, Irish immigrants tended to congregate in the big northeastern cities as well as Chicago and San Francisco. Soon they had organised voting blocks and elected Irish mayors and Chiefs of Police and Fire Departments who in turn hired fellow Irish immigrants.

Irish-born Chief Francis O'Neill of the Chicago Police held auditions for people wanting jobs.

It wasn't enough to be Irish-born! You had to be a traditional musician, a fiddler, fluter, or best of all an uilleann piper. And a good one, too, hence the auditions. https://en.wikipedia.org/wiki/Francis_O%27Neill