Turmeric works well in complex blends, where its pungent earthiness acts as a base to help to bind other flavours together. Add sparingly if it is to be used on its own, so that the bitter notes do not overwhelm.
Turmeric’s dominant earthy notes are produced by the flavour compounds turmerone and ar-turmerone (“ar-” for “aromatic”), which are found in few other spices. The minor compounds provide more opportunities for effective pairing. Focus on one compound for a particular taste effect, or mix and match several