Jamendo links currently auto-select both stream for free and download for free, and accept only both options at the same time. We seem to have around 4000 Jamendo URLs which only have one of the two relationships (probably from before this autoselect was added). They give users a really confusing error that is also hard to fix (since you cannot even manually add the missing type, it requires adding the link again, then removing the duplicate option of the two auto-added, then letting the two links be merged).

We should ideally run a bot that adds the missing stream or download option to all of these Jamendo links (extra points for checking they actually work and ending them instead if not, but that might be too much work).