Taking their name from the Norewgian word for wolf, Ulver is a black metal band employing both noisy death-metal blasting and more relaxed, morose acoustic instrumentation, depending on the concept of their work. Led by vocalist Garm, Ulver recorded two concept albums beginning in 1995; Bergtatt detailed a Norse legend in which maidens are abducted by denizens of the underworld to live in their mountain halls, and the following year's Kveldssanger ("Twilight Songs") was an all-acoustic collection of melancholy dirges. Ulver made their international debut in 1997 with Nattens Madrigal (Madrigal of the Night), a concept album about wolves performed in the traditional Norwegian black metal style; it was recorded for Century Black with a lineup of Garm, lead/acoustic guitarist Haavard, rhythm guitarist Aismal, bassist Skoll, and drummer AiwarikiaR.