I'm using taxonomy and nodes to create a tree structure. Inside the taxonomy term I created an Entity Reference (referencing to nodes). I know this looks like the world upside-down, but for this time this was the easiest way.
Term1 (reference to:) - Node A, Node B, Node C, Node D Term2 (reference to:) - Node B, Node D, Node E
I want to add custom fields to the node, but with different values for each reference. Let's say I want to add a date field with different values for each reference. Adding a custom field to the content type won't work, because they will be the same for all references.