This is one of the easiest Abba songs to learn. It's in the key of G Major. The words and music were written by Benny Andersson and Björn Ulvaeus of Abba.
Banjo Wood Sign. I make these banjo signs myself, the price is €12.50 which includes postage to anywhere in the world. They measure 24cm by 16cm [ 9.5 inches by 6.5 inches ] . The sign has a rustic old look about it.