Hi EIB,
I think I've done what you suggested - here's the result which I certainly find less 'tinny' on the problem notes, so many thanks for your help and advice!
Best wishes,
Fiona
https://wetransfer.com/downloads/552ff342ae6f531055add38598a1c2fc20210623211927/7b025aff4f02db63b8e2e4deba6d7b4f20210623211927/b1c527