Welcome to the year of 2019! Recently I saw this clip from Ólafur Arnalds’s Facebook page. He is a musician from Iceland. The clip shows the preparation work of one of his concerts, where a piano tuners said they have to tune every key of the pianos every day. Repeating every single sound over and over again is a nightmare, but without their efforts, there can’t be a good show. Behind every successful performance, there will always be some unsung heroes.