Thanks for that - it was these URLs:

https://gribbles.bandcamp.com/track/days-end

https://dutymusic.bandcamp.com/track/memory-bells

https://subphotic1.bandcamp.com/track/cathedral

They are all indivudual tracks as opposed to albums. Not sure why that would make a difference, but will try embedding an album...

https://gribbles.bandcamp.com/album/past-pastures-past