The Folia in 'O Lusitano' is most probably an improvisation of the musicians in the studio. I asked one of them but she did not remember that well how that track was played. The 'later' Folia-theme became familiar after 1672 so the tune could not have been composed by Machado around 1600 as the slipcase mentioned. The Machado-part is incredibly beautiful indeed but too short to make it a full track! I agree great music all the way