Following a string of personal disasters, Franz Liszt (1811-1886) withdrew to a monastery and received the four minor orders of the Catholic Church. He became known as the Abbé Liszt. Unusually for an Englishman, Edward Elgar (1857-1934) was a devout Catholic.
All the composers claimed by Crowley are German, but that is probably not why he thinks they all belong in hell...
Listen on Spotify:
Liszt - Christus
Elgar - The Dream of Gerontius
Mozart - Don Giovanni