The late 1980s and early 1990s saw Iron Maiden experimenting with new sounds and styles. Albums such as "Seventh Son of a Seventh Son" (1988) and "No Prayer for the Dying" (1990) demonstrated a more progressive approach, incorporating synthesizers and atmospheric textures. This era also marked the departure of vocalist Bruce Dickinson and the arrival of Blaze Bayley, whose tenure with the band was marked by a more commercial and experimental sound.