The note of burning wood, particularly 'firewood,' evokes a complex tapestry of scent. Initially, it presents with a sharp, almost acrid smokiness, reminiscent of the first lick of flame catching dry timber. This quickly softens into a profoundly warm, dry, and slightly resinous woodiness, mingling with the ethereal trace of combustion. There's an undeniable earthiness, sometimes bordering on a subtle leathery nuance, imparted by the slow smoldering. The texture is perceived as dry and rugged, yet simultaneously enveloping and smooth, like seasoned timber warmed by heat. Its intensity can range from a faint whisper of a distant bonfire to the dense, enveloping cloud of a roaring hearth. It projects moderately to strongly, creating an atmospheric aura, and possesses exceptional longevity, often anchoring a composition deep into its dry-down as a steadfast base note. Hints of a sweet, almost tar-like quality can emerge, especially in varieties like birch tar, adding a touch of balsamic depth to the otherwise dry profile. It carries an inherent warmth that radiates, pulling one closer to its source.