Robert Slap - Ascension to the All That Is (Album)
Robert Slap - Chants Grégoriens Méditatifs (Album)
Robert Slap - In the Caverns of Your Mind (Album)
Robert Slap - Mystic Memories (Album)
Robert Slap - New Age Gregorian Chants (Album)
Robert Slap - Om Sanctuary (Album)
Robert Slap - Search for Utopia (Album)