Are Citi and JPMorgan Sharing The Same iPod?

How are Citi and JPMorgan most alike these days? If you guessed unholy terror over potential putback litigation, good guess — but try again.

No, it seems that Citi & JPMorgan are using the same hold music on their earnings calls — and not just the same symphony but the same movement. Specifically, both banks played the Adagio from Mozart's 36th symphony, known as the Linz Symphony.

Here is the Vienna Philharmonic performing: If you're so inclined, take a listen.

Why is this important? Well, it's not. But it is consoling these days to make some definitive observation about a bank's earnings call.