Three notes, a C, an E-flat, and a G, walk into a bar.

The bartender says to them, "I'm sorry, we don't serve minors here"...

So the E-flat leaves, and the C and the G have a fifth between them.

But wait, there's more...

The very next day, a C, an E-flat, and a G-flat walked into the very same
bar, and their minor problem had diminished.

But, what happened to the booze?

It went flat!

Later their drinking privileges were suspended.