Thank you. I did try Wavlake but not Fountain, which I did just now. There is indeed a download feature, but it is more a "download to use the app offline" similar to Spotify or other streaming service, rather than a "download and do whatever you want with the file" that Bandcamp provides... So the value flow seems better with Fountain than Spotify, but for my intent of sovereign music usage it does not work as well as buying the file (for instance : what happens if the file is withdrawn from the platform ? I guess similarly to my poor experience with Deezer and Spotify, I loose it at the next sync)