How to use feeds with entity reference? I have a simple example the uses an entity reference field that references taxonomy terms (e.g. "Arranger"). On import I need feeds to see if the term exists, reference it. If it doesn't exist, create and then reference it:

My CSV:


My Feed Mapping:


It imports everything else but not the entity reference field. It doesn't create the term either. 

What do my feed mapping need to look like to allow entity reference to check for and if the term doesn't exist, create it (and then reference it)?
Perhaps the Feeds Tamper: String to ID module might in this situation?

A Feeds + Feeds Tamper plugin that resolves strings pulled in from feeds importers and maps them to Drupal entity IDs, so they can be used as entity references.
Adds support for freeform Entityreference linking when using Feeds.