Identifying Mr Wright and Mr Walsh's Scottish tunes proved to be merely the start of an extended visit to 18th century London. Having tracked down Daniel and John to my satisfaction, I decided that the Thompson family were worthy of further attention. Not to mention John Johnson and Joseph Johnson (one published music, the other primarily words, religion and radical politics); and then there was Bremner, one of the music publishing giants of his time. And a few others who slipped into my net briefly!
If you see a small, 21st century musicologist snooping round St Paul's Church Yard next week, it'll be me wondering what it was all like before the 2nd World War!