The same is true when musicians come from different musical backgrounds and were previously solo artists. Which takes us back to the present and to European monetary union. Some 19 countries decided to form a band for the long haul.
This band has now been gracing the stage for 20 years, 6 / 10  BIS central bankers' speeches  already twice as long as the Beatles. With that in mind, it’s more like the Rolling Stones: there is no end in sight. And so the euro celebrated its 20th birthday on 1 January.