The National Library of Scotland has brought in the Alexander Street Press's Music Online Premium service on a trial basis until the end of October. Apart from digitised books, scores and so on, there's a fantastic amount of streaming music to be had, including what looks like most of Document and Folkways, and all free to anyone who lives in Scotland and signs up for the library's digital services.
https://auth.nls.uk/ldc/browse.cfm?by=subject&sid=103
https://auth.nls.uk/ldc/browse.cfm?by=subject&sid=103