If you don't know Sevarome, you might want to give their Apricot paste a try. They are a French company well known for their high-quality flavorings (aromas in French). I know some pastry chefs at high-end hotels in NYC that use a lot of Sevarome products.
In addition to Apricot, they make interesting paste flavors like cardamom, fennel, verbena, and jasmine.
You can purchase them on the web at www.echocolates.com
, their importer.