Resins often have more complexity than simple sweetness. Myrrh, for example, can smell earthy, bitter and resinous, giving the accord a dry and somewhat mysterious depth. Other resinous materials may lean towards vanilla, balsam, spice or smoke. When these effects are combined, they can create a dense base that feels warm without necessarily becoming sugary.
Softer supporting materials can change the impression considerably. Vanilla can smooth the harder edges, tonka bean can add warm almond-like and powdery qualities, and sandalwood can create a creamy woody background. A Resinous accord should therefore be kept separate from an Amber accord: the two can overlap, but resinous describes the prominence of resin-like qualities, while amber is a particular warm blended effect that may itself contain resins.