There are at least two bands called Rosicrucian: 1. Thrash Metal band from Västerås, Sweden. Formerly known as Atrocity. Later known as Slapdash. Released demo 'Initiation Into Nothingness' (1990) as well as two albums; 'Silence' (1991) and 'No Cause for Celebration' (1994) 2. Atmospheric Post-Black Metal from Bristol, United Kingdom. Released their well acclaimed EP ‘Beneath the Waves’ (2011).