Under A Purple Sky Is Guido Bos Former Member Of Siglo XX And Stef Timmermans Aka Mr Nick Bat . The Music Of UAPS Is Based Upon Bands That Made The 80's So Exciting Bauhaus Sisters Of Mercy Killing Joke P.I.L. Joy Division The Cure The Sound ... And Siglo XX The Band Guido Played In From 1978 Till 1984 .