Spice notes are used to add warmth and potency to a fragrance, mixing particularly well with floral notes in the heart of a perfume. Notes like cinnamon and nutmeg add spice and sweetness, while others like rosemary and basil possess an herbal quality. Sandalwood and patchouli are two wood notes that are often used in a fragrance’s base to strengthen the scent’s lifetime. While most wood notes have an earthy quality, some like cedarwood and oud provide a nice sweet scent. Musky notes are most frequently found in the base notes of fragrances. Their richness helps to fill in the foundation and increase the duration of the scent. The different types of musk, from black musk to cashmere musk, means that these scents can add a unique trait to any fragrance.