Collis sanguinis

Medieval black metal is a fusion of second‑wave black metal with the melodic language, instruments, and atmospheres of medieval European music. It retains the raw tremolo‑picked riffing, blast beats, and harsh vocals of black metal, but frames them with modal melodies, droning fifths, and courtly or liturgical timbres. Typical hallmarks include the use (or convincing emulation) of medieval instruments such as hurdy‑gurdy, harp, lute, recorder, bagpipe, and hand percussion, as well as choral textures inspired by Gregorian chant and organum. Harmonically it favors modal scales (Dorian, Aeolian, Phrygian, Mixolydian), open fifths, and cadences reminiscent of early music, often alternating with aggressive black‑metal sections. Lyrically and visually it draws on feudal lore, chivalric romance, plague and warfare, saints’ lives, troubadour poetry, and regional history, creating a distinctly archaic atmosphere within extreme metal.