Creativity and collaboration. That's how Plumstreet works with clients. client list Jazzin' on Jefferson 2006 http://www.jazzinonjefferson.com This Detroit Jazz Festival is hosted by the Jefferson East Business Association, and features many national acts. When JEBA began gearing up for the 2006 festival, they engaged Plumstreet to design a website for the festival that was reflecting of the festival's logo and colorful presence.