Here's some background and some links for the vaduvan:
http://www.theperfectpantry.com/2009/10/vadouvan-pantry-special-recipe-butternut-squash-soup.html
The Gourmet Magazine article was particularly interesting -- if it's still there. (Small tear!)

z'atar has sumac (dark red in color), sesame seeds, and thyme...so good on goat and lamb!

I wish I knew your friend!

Thank you!

za'atar is on the left.