In today's programme Donald Macleod explores some of the musicians who travelled to hear Dieterich Buxtehude perform. One day towards the end of 1705, a young man of twenty turned up at Buxtehude's door at St. Mary's church in Lübeck. He introduced himself as Johann Sebastian Bach. He had heard about Buxtehude's legendary organ playing and had walked all the way from Arnstadt ? 280 miles away ? to hear him play in person. Bach had taken leave of his post for four weeks. He stayed for three months. On his return, Bach got into trouble on two counts: for staying away so long, and for now playing the chorales in such a bizarre way that the congregation was thoroughly confused.